I have access to some kit that Ican setto pulse the injectors on/off. It's definitely an annoyance tho. 8T Johan Jacobsson How to Diagnosis a Rough Idle and Hesitation 12:13. Cylinders misfire when in idle My 2005 Audi S4 Cabriolet 4. 5 V6 Quattro B6, 1. 2012 audi a4 quatro, cylinder 2 misfires, replaced cylinder 2 coil, replaced all spark plugs, 2nd cylinder fuel injector, cleaned carbon off the valves, replaced oil separator assembly, compression test reveals cylinder 2 at 130 vs 1 3 and 4 at 170, misfires at idle only, Please help. If the Check Engine Light comes on, you may find any of the following codes: P0171, P0174 Lean fuel condition codes; P0120 to P0124 Throttle position sensor codes. But if the misfires get out of hand and occur too often, they can make the engine idle or run rough, stumble when accelerating, waste gas and fail an emissions test. I checked the codes and here's what I got: P0300 (generic misfire), P0302 (misfire cylinder 2), P0304 (misfire cy. 8T, Cabriolet 1. Rough Running At Idle: MAF, Ignition Coil, Spark Plug, VAC Leak, O2 Sensor, TB, CTS Misfires under Boost Flashing CEL: Ignition Coils, Spark Plugs. 2 liter V8 has been a great ride for the past 73,000 miles. Vehicles affected by this service. Friends cars under my care 17 Audi A4 Quattro DSG (B9. Really, your A4 will be running rougher at any RPM, but a misfire will be most pronounced at idle. I have a 2005 A4 Avant, 2. ===== Audi A4 2. It also seems to happen when shifting in reverse and is triggered when turning the heat or AC fan off. An walnut shell intake cleaning would cost at least 10 times that. The car would shake and hesitate, mostly noticeable at idle but also during driving. Audi B5 A4 1. 0 FSi - AWA engine (not covered specifically by ACR4. The misfire count is really bad on cylinder 4 on idle when cold. Cylinders misfire when in idle My 2005 Audi S4 Cabriolet 4. This may cause your Audi to idle rough, backfire, misfire, or not deliver full power. Model 2008-2015 a3, a4, allroad, tt, a5, a5 cabriolet, q5, a. 06 audi a4 2. It now takes a while to start, runs rough for the first 30secs or so, and settles down to a smooth idle. audi a6 ignition module 04 audi a6 2. Vw Cc 2010 Rough Idle Flashing Check Engine Light Youtube. TTweaker's Guide Best Audi TT 8N Body Kit? How to create your own 5 or 6-speed Open Metal Shifter Steering Wheel Swap on my Audi TT / Flat Bottom Mk2 fitted on a Mk1 Audi TT Tuning: Aesthetics Aftermarket Accessories The Powertrack Insert; The best way to improve your Haldex first generation traction!. Is there a special tool or instrument (in dealer or repair shop) that can be used to make my Audi A4 2003 catalyst monitor ready and pass the smog test without going through the recommended drive cycle? Two months before my car's smog test I had my car's battery disconnected while out of the country. Order your parts online or pick them up in-store at your local Advance Auto Parts. Car runs well over 1k rpm, doesn't seem to misfire and I can hit 15psi of boost (stock tune, via boost gauge). This may be due to a faulty mass airflow sensor. 8T leads me to think software or oil viscosity, assuming you changed the plugs at 40K, and the vacuum hoses check out. I have misfire than more few month only on Cylinder 1 and only under 1100RPM. If the Check Engine Light comes on, you may find any of the following codes: P0171, P0174 Lean fuel condition codes; P0120 to P0124 Throttle position sensor codes. 8TQ GIAC, 710N 2003 GTI 1. i went by there and he said the car got worse when he drove it ,the car is back firing big time and he said the promm(i guess i'm saying it right) in the computer is not matching up with my vin numbers, and that the screen went crazy on him at one point. 2011 Audi A4 Rough Idle. You may also notice your vehicle has poor performance and excessive fuel consumption. 8L 1997, Ignition Coil by Bremi®. I pulled over felt the exhaust and it was putting out air at a. You can check for vacuum leaks by squirting carb cleaner on the hoses and see if the idle changes, if it does there's a leak there. 8rough idle at cold start, with misfire and check engine light, but when engine gets to - Answered by a verified Audi Mechanic. I come here to have some help and information. It was the clutch that didn´t hold strongly so it slided various times before finally crushing itself agains the double mass flywheel. If misfire happens only at idle, the EGR valve and purge valve need to be checked, as either one could be stuck open. 2004 S4 misfires, flashing CEL, Rough Idle Welcome ! Still go the random misfires, CPS 2, and cylinder 6 misfire. Let me use an idle complaint that had me on the ropes as an example. reduces misfires and increases durability of the plug. 8T it should fix the rough idle but i would buy them myself and put them in not the dealer. 8TQ DEAD 2000 Supercharged JettaRed DEAD. When I start the car, I get misfires on all cylinders (very rough idle, sometimes it stalls when the engine is cold) and the car appears to be running lean. It's steady, but when my hand is on the steering wheel I could feel a vibration from the engine. Only one problem. Some OBD II systems monitor inputs from the ABS wheel speed sensors to tell when a vehicle is driving on a rough road, and disable misfire detection until the road smoothes out. '11 Audi A4 Avant - Brilliant Black. Recently it has been running rough at idle in the cold and has the odd hiccup after it's warmed up as well. Misfire codes are P0300-P0304. Model 2008-2015 a3, a4, allroad, tt, a5, a5 cabriolet, q5, a. I have an Audi A4 2007 2. Its really violent if you accelerate hard. 2011 Audi A4 Rough Idle. Rough Low Idle and Engine Shakes, Hesitation and Lack of Power new plug fairly quickly and cause the misfire to return: can also explain the rough idle and. Just an update regarding the misfire on my A4 Tfsi, I burned 2 valves on cylinder 3 that led to the misfire and no compression reading, anyway had the repair done I received my car back and it had a rough idle, no issues found while running the diagnostics and they ended up stripping and checking the timing that ended up fine. Audi engine misfire - what is the cause? I purchased a used Audi 2. 0T, no performance mods or tunes, other than OE springs it's all stock. 0 tdi GT 170 BMN engine For the last several months I have suffered from the common judder /misfire / strange idle problem. for the past year when I come off the highway and stop at a light within a minute or so the engine begins running ruff like its going to stall and the engine light blinks. I have 2001, audi, a4, 2. I have noticed that If I get on it after a stop light it will idle smooth at the next stop light It will also idle smooth after I get off the interstate running at 75 or so. 8L 1997, Ignition Coil by Bremi®. You may also notice your vehicle has poor performance and excessive fuel consumption. Code AMB) 2003 --> 2005 Condition Sporadically after cold start, engine may run slightly rough for a few seconds and the MIL may illuminate with only misfire DTCs (P0300,P0301, P0302, P0303, P0304) stored in DTC memory. It has been a great car but over the past few months the idle has gone "lumpy" intermittently. 06 plate audi a4 2. If you switch it off and start it up again, there’s no misfire and no engine check light. 5 codes, rough idle, misfires, stallsUGH! Describe the problem you are having in detail: Started the truck up tonight after using it off and on all day today, started hard and had a really choppy idle, gave it some fuel to "clear it out" and it blew lots of black smoke from the tailpipe and ran very very rough. Is there any corelation between a worn out PCV valve and rough idle?. 0T, no performance mods or tunes, other than OE springs it's all stock. Here is a list of the most common check engine lights (CELs P Codes) and their common causes and common symptoms. Audi A4 DOHC 2. Then the same scenario occurs again. 16687 Cyl 3 Misfire 16686 Cyl 2 Misfire 16785 EGR System flow insufficient 17912 Air Intake System s/c to another valve I take it that there is a misfire on at least 2 cylinders, but maybe others as the random misfire fault has appeared. • One or more of the following DTCs are stored in the Engine Control Module (ECM), J623 (address word 01): • DTC P0300 (Random/Multiple Cylinder Misfire Detected). What's New 3 12 24 72. 0T TSI engine (same as a late mk5 and all mk6 2. If misfire happens only at idle, the EGR valve and purge valve need to be checked, as either one could be stuck open. 0 TDI BMN / BKD engine judders / misfires at idle. Audi Buyers Guide -- 2003 Audi A4 1. Faulty mechanical valve train components like worn camshaft lobes or stretched timing chain can also cause the engine to misfire; they too might need to be inspected carefully. Shaking is more noticeable at idle or during acceleration. When I start the car, I get misfires on all cylinders (very rough idle, sometimes it stalls when the engine is cold) and the car appears to be running lean. summary: audi: the engine would have a rough idle, different misfire faults or reduced performance without loss of power or stalling, that causes the malfunction. 04 audi a6 random misfire cylinder misfire audi wierd vibrationmisfire 2003 a6 4. If a coil pack goes bad, it’ll cause a misfire and rough idle condition. '11 Audi A4 Avant - Brilliant Black. So many dealerships and mechanics tried to solve this issue, yet not one person said to clean the TB. I have a 2002 Dodge Ram 1500 with a 4. 8T Quattro rough idle problem (1 2 3 by Kaytorealaudia497. I am not sure if Audi can be proud of this "Forsprung durch Technik", at least not for this car. • DTC P0301 (Cylinder 1 Misfire Detected) • DTC P0302 (Cylinder 2 Misfire Detected) • DTC P0303 (Cylinder 3 Misfire Detected). A MIL may be on with P0300 and/or P0301, P0302, P0303, P0304 (cylinder misfire detected), along with a rough idle. Didnt have the time to really mess around with it. One of the most common symptoms associated with a faulty ignition coil is engine performance issues. All warranty work in terms of oil consumption has already been carried out by Audi but every so often, my car cranks but does not turn. if you have a request for a different vehicle please inform high gloss simple diy fitment high quality any colour any size give your audi a great but original look r350 a pair collection in midrand tag s a1 a3 a4 a5 a6 a7 a8 s1 s3 s4 s5 s6 s7 s8 rs3 rs4 rs5 rs6 rs7 dtm 2. Audi A4 owners have reported 24 problems related to timing tensioner (under the engine and engine cooling category). 2011 Audi A4 Rough Idle. 04 audi a6 random misfire cylinder misfire audi wierd vibrationmisfire 2003 a6 4. pulkkinen, Oct 12, 2010. a4 miss fire at idle - miss fire at idle check engine light flashing raise rpm liight go off × We use cookies to help our site to work, to help us understand how it is used, and to tailor advertising on this and other sites. 8L 1997, Ignition Coil by Bremi®. 0 TFSI misfiring rough idle shaking even dunno how to call it. 2004 Audi TT 225Q GIAC, Forge 007, Neuspeed 19mm RSB, 42DD Downpipe, BoostMachine, Haldex Blue, Devil's Own WM Injection 2008 Infiniti G35x (stock) 1999. On 1996 and newer vehicles that are Onboard Diagnostics II (OBDII) compliant and have misfire detection, the OBDII system tracks and counts misfires. If misfire happens only at idle, the EGR valve and purge valve need to be checked, as either one could be stuck open. It gets better when warm but not great. TTweaker's Guide Best Audi TT 8N Body Kit? How to create your own 5 or 6-speed Open Metal Shifter Steering Wheel Swap on my Audi TT / Flat Bottom Mk2 fitted on a Mk1 Audi TT Tuning: Aesthetics Aftermarket Accessories The Powertrack Insert; The best way to improve your Haldex first generation traction!. The most recently reported issues are listed below. 2012 audi a4 quatro, cylinder 2 misfires, replaced cylinder 2 coil, replaced all spark plugs, 2nd cylinder fuel injector, cleaned carbon off the valves, replaced oil separator assembly, compression test reveals cylinder 2 at 130 vs 1 3 and 4 at 170, misfires at idle only, Please help. In Nov 08 I purchased a 55 Audi A4 2. 04 audi a6 random misfire cylinder misfire audi wierd vibrationmisfire 2003 a6 4. 8T QT (65,000 miles) started to misfire. I have misfire than more few month only on Cylinder 1 and only under 1100RPM. Audi A4 with 12 Volt System 2006, Direct Ignition Coil by Denso®. Pulled tech bulletin, see a cowl seal issue. This Is What Happens When You Don't. I pulled over felt the exhaust and it was putting out air at a. Audi A4 Running Rough P0171 P0507 P2279 & Multiple Cylinder Misfire Diagnosing and Repairing Audi A4 Fault Codes. The past few weeks I've noticed my engine has a rough idle. 0 FSi - AWA engine (not covered specifically by ACR4. My car has 71500 miles. Buy a 2007 Audi A4 Quattro Spark Plug at discount prices. history, the original owner tried his best to pass on information. LACK OF POWER AND MULTIPLE. My car has an automatic transmission. I have noticed that If I get on it after a stop light it will idle smooth at the next stop light It will also idle smooth after I get off the interstate running at 75 or so. My 2001 Audi A4 1. docx), PDF File (. Due to the location of your factory ignition harness and its close proximity to the exhaust manifold, it is common for the factory harness to become brittle and crack apart over time due to years of heat cycling. 8TQ DEAD 2000 Supercharged JettaRed DEAD. Pulled tech bulletin, see a cowl seal issue. The fuel injectors or carburetor on your vehicle regulates fuel flow into the combustion chamber. Maybe that would be enough to allow the valves to close and eliminate the misfire. Buy a 2007 Audi A4 Quattro Spark Plug at discount prices. They seem to occur for no apparent reason. 0 TDI 170 rough Idle and white smoke when warming up. At times it will stabilize but then the surging returns a bit later. This usually happens when the engine has had a misfiring or rough running in the past and the customer continues to drive the vehicle for a long period of time. Faulty mechanical valve train components like worn camshaft lobes or stretched timing chain can also cause the engine to misfire; they too might need to be inspected carefully. I have Audi S5 2009 B9 TIPTRONIC. I am pretty sure I figured out what my problem was, the studs that go into the adaptor under the carburetor, one of them was threaded in so that about 1/16" or so. Components in the fuel, ignition, emission and other systems should work correctly. Car would have trouble starting sometimes and when starts it bogs out. 8rough idle at cold start, with misfire and check engine light, but when engine gets to - Answered by a verified Audi Mechanic. 0TFSI very rough ildle/Misfire on cold starts - please help. 0T TSI engine (same as a late mk5 and all mk6 2. I will sometimes notice it running rough at an idle, but most times it seems to run fine. Audi A4 DOHC 2. My understanding is that the misfire is only at idle so it won't hurt the engine if you decide not to replace the head. around 113k or so. 2004 S4 misfires, flashing CEL, Rough Idle Welcome ! Still go the random misfires, CPS 2, and cylinder 6 misfire. Replaced fouled plug, grabbed a used coil from a tech's workbench and swapped it in. My car has 71500 miles. To diagnose many of the problems, you will need little more than a test light, a volt meter, a vacuum gauge and maybe a can of brake clean. It was well taken care of! The only thing that is wrong with the car is a misfire when idle that in turn causes a check engine light to come on periodically. 2012 audi a4 quatro, cylinder 2 misfires, replaced cylinder 2 coil, replaced all spark plugs, 2nd cylinder fuel injector, cleaned carbon off the valves, replaced oil separator assembly, compression test reveals cylinder 2 at 130 vs 1 3 and 4 at 170, misfires at idle only, Please help. The 2006 Audi A4 has 1 problems reported for misfiring. Engine Stalls (Check Engine Light May or May Not Be On). A You Tube search this morning allowed me to compare other misfires at idle and according to those home mechanics it seems pretty definitive that is the issue but appears I got sucked into that, sorry let's return to rough running. Misfire codes are P0300-P0304. 8 random misfire my car has a random misfire code p0300,p0301,p0303,p0304. The rough idle in all of these cases is caused by "lean misfire. My 1998 A4 1. 6L A4 SE, 1. You may also notice your vehicle has poor performance and excessive fuel consumption. Volkswagen, Audi, Mini, Rough Running when Cold , Misfire and Check Engine Light. Also, it may run fine most of the time but suddenly misfire or cut out for no apparent reason. A lad at work has an Audi A4 2. Driving on a rough road, for example, may produce variations in crank speed that seem like misfires but are not. g when coming to a halt. Audi A4 Running Rough P0171 P0507 P2279 & Multiple Cylinder Misfire Diagnosing and Repairing Audi A4 Fault Codes. This can be the definitive thread to how to fix the 2. (Has unit injectors) problem is that its misfiring or rough idling. Audi B5 A4 1. 16690 audi fault code newbie - help with specific vag code 17707 lots of engine codes anyone have any ideas what could be causing these codes misfire on audi a3 3. At times it will stabilize but then the surging returns a bit later. At less than $20 a can, I think its worth a try. 8L R4, Audi 8T0, Audi A6 C5, Does your Audi occasionally have a hard time starting, yet finally starts just before you give up? So when it starts, the EPC and ESP lights are on, then the engine cuts out. Audi Recalls A4, -engine light flashing -engine light on -rough idling -rough acceleration. Engine rough idle problems arise because car engines are demanding. I can feel the misfire at idle and I can see with my vag com and I have check engine light and Misfire cylinder 1 misfire code P0301. or too lean ,like a bad 02 (biased falsely rich) can make idle fall. Rough idle and cylinder misfire cyl #2 . If misfire happens only at idle, the EGR valve and purge valve need to be checked, as either one could be stuck open. Compare 2007 Audi A4 Quattro Spark Plug brands. If a coil pack goes bad, it’ll cause a misfire and rough idle condition. i have change all spark - Audi 2001 A4 question misfire and surge at idle. I have a 2005 A4 Avant, 2. I scanned with VCDS again, got the following 8 engine codes (yikes!): p2279 leak in air intake system (MIL ON) p0507 idle control system RPM higher than expected. I can feel the misfire at idle and I can see with my vag com and I have check engine light and Misfire cylinder 1 misfire code P0301. Driving on a rough road, for example, may produce variations in crank speed that seem like misfires but are not. Car has always driven fine up until the other night, I floored it and went close to 120mph on a free highway, and then suddenly my CEL and EPC warning lights come on, engine starts shaking badly when I accelerate, but not when cruising/coasting so I made it the last few miles home going slow. Bad Ignition Coils and Misfires for VW and Audi 2. Audi TT, A4 1. lB YP Zb Ea Kq pA jH GO Ub qr xg Ej Wy az cd tH X9 51 We Pz v0 f3 x7 oF 2h MH 8g cv 2G IV 6t CV 8u ph XU 5p gz U2 Kq hG C2 Ip yC an 2T 2d wR Gx Um 4G We nB 2M Ef Nc. Is your vehicle hard to start? Does it miss under load and idle rough? Is your gas mileage not what it used to be? Your ignition system may need repair, but before you. 0 TDI 170 rough Idle and white smoke when warming up. Success!!! Just got in from work at about16:00, rested till about 18:00 and then removed and reinstalled all the addaptors for the carb. Just an update regarding the misfire on my A4 Tfsi, I burned 2 valves on cylinder 3 that led to the misfire and no compression reading, anyway had the repair done I received my car back and it had a rough idle, no issues found while running the diagnostics and they ended up stripping and checking the timing that ended up fine. Misfire at idle 1 Answer. On 1996 and newer vehicles that are Onboard Diagnostics II (OBDII) compliant and have misfire detection, the OBDII system tracks and counts misfires. You may also notice your vehicle has poor performance and excessive fuel consumption. Add mine to the list, it idles rough once its warmed up. It's steady, but when my hand is on the steering wheel I could feel a vibration from the engine. My car is an audi a4 2. 0T, no performance mods or tunes, other than OE springs it's all stock. 0 tfsi, its had issues since day one. 04 audi a6 random misfire cylinder misfire audi wierd vibrationmisfire 2003 a6 4. Looking at buying an ultrasonic cleaning tank to clean all 4 injectors. or mess up cam or valve timing ! or a misfire on one cyl. 0 FSi - AWA engine (not covered specifically by ACR4. Soon after I noticed the car at tickover (950 rpm) to suffer from a rough idle and also engine stumbles to approx 900rpm (before recovering) when the revs drop e. I pulled over felt the exhaust and it was putting out air at a. 0 TDi 140 PD (BLB engine), with 177,000 on the clock. g when coming to a halt. A4 (B8 Platform) Discussion - Misfires, rough idle, lots of errors - Hi guys, So since I've had my A4 B8 2. for the past year when I come off the highway and stop at a light within a minute or so the engine begins running ruff like its going to stall and the engine light blinks. 8TQ DEAD 2000 Supercharged JettaRed DEAD. Try this and let us know. 2005 Audi A4 1. history, the original owner tried his best to pass on information. It only takes a minor problem like a fouled spark plug to cause your engine to vibrate. 8l 30v AUDI A4 B6 P0011 plus idle and acceleration problem AUDI A4 B5 2. As mentioned, a cylinder misfire can happen due to a few reasons, and to make things simple, we created a table to show you exactly what repairs may be required to fix the misfire condition. My 1998 A4 1. 2001 audi a4 1. What are causes of valve failure? The valves in your Audi A4 or Audi A4 Quattro may become bent or broken due to contact with the cylinder pistons. By providing the proper spark to the spark plug all of these running issues can be resolved. I have given it a full service, to no effect. A MIL may be on with P0300 and/or P0301, P0302, P0303, P0304 (cylinder misfire detected), along with a rough idle. Buy a 2007 Audi A4 Quattro Spark Plug at discount prices. 3s, but did not see the problem in the 5. 0 tdi GT 170 BMN engine For the last several months I have suffered from the common judder /misfire / strange idle problem. This usually happens when the engine has had a misfiring or rough running in the past and the customer continues to drive the vehicle for a long period of time. If the engine runs normally at idle, the. 8TQ DEAD 2000 Supercharged JettaRed DEAD. In these vehicles, damage could occur in the sealing rubber boots on the front suspension track control link ball joints – this could lead to the ingress of moisture (PRA 2004/7040). Audi A4 P2188 Engine Trouble Code When your car's 'Audi A4 P2188 Check Engine' light comes on, it's usually accompanied by a sinking feeling in the pit of your stomach. Or, it may start and idle fine but then misfire or hesitate when it comes under load. Remember also that a rough idle doesn't always meet the criteria for storing a cylinder misfire code. If you switch it off and start it up again, there’s no misfire and no engine check light. Most of the time it comes with a code for a cylinder 1 misfire but not every time. I have recently noticed my car will stall when I try to turn it on. Bad Ignition Coils and Misfires for VW and Audi 2. 2012 audi a4 quatro, cylinder 2 misfires, replaced cylinder 2 coil, replaced all spark plugs, 2nd cylinder fuel injector, cleaned carbon off the valves, replaced oil separator assembly, compression test reveals cylinder 2 at 130 vs 1 3 and 4 at 170, misfires at idle only, Please help. 0 tdi GT 170 BMN engine For the last several months I have suffered from the common judder /misfire / strange idle problem. A MIL may be on with P0300 and/or P0301, P0302, P0303, P0304 (cylinder misfire detected), along with a rough idle. Audi A4 P2188 Engine Trouble Code When your car's 'Audi A4 P2188 Check Engine' light comes on, it's usually accompanied by a sinking feeling in the pit of your stomach. 0t, Rough, low idle, misfires. The rough idle & misfires are still present. Rough idle and cylinder misfire cyl #2 . This is a good example of how basic engine diagnostic tests can work to pinpoint the root cause of the cars problem. If misfire happens only at idle, the EGR valve and purge valve need to be checked, as either one could be stuck open. Took it to the delaership they replaced the fuel pump and told me i was low on oil. Fixing Audi A4 Common Vacuum Leaks It still idles rough with a 17705 check DV code. My car has an automatic transmission. I have an ageing (53 plate, 120,000 mile) Audi A4 1. I've had an A4 identical to this causing a very rough idle and almost impossible to rev on load. Maybe that would be enough to allow the valves to close and eliminate the misfire. The engine may only misfire and run rough when cold but then smooth out as it warms up. 8T pricing, mpg, engine, transmission. still struggles to start. reduces misfires and increases durability of the plug. Then the same scenario occurs again. Intake manifold was replaced and PCV has been - Answered by a verified Audi Mechanic. 8T running rough (codes included) - posted in A4 (B6) 2001 - 2004: Hi guys, Ive been having a bit of trouble with the A4 recently and I hope that some of you guys might be able to shed some light on what is going on!. Engine Stalls, Misfire Code, & Cylinder Misfire The engine may be stalling because it isn't getting enough throttle opening. Above idle it runs smoothly, there is no loss of power and there has been no increase in fuel consumption. If a coil pack goes bad, it’ll cause a misfire and rough idle condition. My daughter has been using my truck for quite a while and she recently returned it to me because it started running rough and dying. Bad Ignition Coils and Misfires for VW and Audi 2. Audi A4 Running Rough P0171 P0507 P2279 & Multiple Cylinder Misfire. In these vehicles, the driver may experience:. Also, it may run fine most of the time but suddenly misfire or cut out for no apparent reason. Over the course of today the rough idle seems to come and go. When the engine is started cold, regardless of the outside temperature, the idle is rough and there is a noticable power loss. 8rough idle at cold start, with misfire and check engine light, but when engine gets to - Answered by a verified Audi Mechanic. Code AMB) 2003 --> 2005 Condition Sporadically after cold start, engine may run slightly rough for a few seconds and the MIL may illuminate with only misfire DTCs (P0300,P0301, P0302, P0303, P0304) stored in DTC memory. My buddys 2010 audi a4 with a 2. 8T for over 3years! And cleaning the throttle body did the job and fixed it. The SL got delivered to the dealer this morning by my mechanic friend and I, no easy feat in itself. What's New 3 12 24 72. can see smooth running figures on data stream. 0T, no performance mods or tunes, other than OE springs it's all stock. At less than $20 a can, I think its worth a try. The issue might be a fuel injector or a vacuum leak. g when coming to a halt. • DTC P0301 (Cylinder 1 Misfire Detected) • DTC P0302 (Cylinder 2 Misfire Detected) • DTC P0303 (Cylinder 3 Misfire Detected). The problem is. What does this code mean anyway? The definition for this this P0171 code is Fuel Trim System Lean (Bank 1). Chapter 1: Introduc tion—VW/Audi OBD-II Readiness Codes i NOTE: Do not leave the key on prior to the cold start or the oxygen sensor (O2S) heater monitor may not run. 0 FSi - AWA engine (not covered specifically by ACR4. summary: audi: the engine would have a rough idle, different misfire faults or reduced performance without loss of power or stalling, that causes the malfunction. The engine shaked BIG TIME !!!! I even broke an engine support because of this. I have a 2008 S5 with 33k miles on it. When I replaced the bad PCV valve the car ran like new. Audi A4 Questions Car Starts And It Shuts Off Loses Power Cargurus. Car idles rough and misfires at low RPM. Problem solved. Audi A4 AVF 1. reduces misfires and increases durability of the plug. or too lean ,like a bad 02 (biased falsely rich) can make idle fall. 0T that was having a very bad misfire at idle and when I drive. To see how frequently 2011 Audi A4 / S4 / RS4 problems occur, check out our car reliability stats. do NOT contact me with unsolicited services or offers. This is a good example of how basic engine diagnostic tests can work to pinpoint the root cause of the cars problem. This usually happens when the engine has had a misfiring or rough running in the past and the customer continues to drive the vehicle for a long period of time. 8T running rough (codes included) - posted in A4 (B6) 2001 - 2004: Hi guys, Ive been having a bit of trouble with the A4 recently and I hope that some of you guys might be able to shed some light on what is going on!. 0 FSi - AWA engine (not covered specifically by ACR4. Replacing the bad PCV on my 2011 Audi A4, because it was running Rough at idle. The code P0300 stands for random misfire. I found the following tech bulletin concerning rough idle or misfires on our TB's. 0T, no performance mods or tunes, other than OE springs it's all stock. 8T, A4 B5 1. 0T TSI engine (same as a late mk5 and all mk6 2. TOOLS: T20 Torx Screwdriver (1) Flathead Screwdriver (1) PARTS: Ignition Coil (1) 2004-2008 Audi A4 (B7) Ignition Coil Replacement Guide ID: 88502 -Draft: 2017-09-11. (don't idle it but just. At less than $20 a can, I think its worth a try. Add mine to the list, it idles rough once its warmed up. I have a 2001 Audi A4 1. IGNITION COILS MAY FAIL CAUSING A ROUGH IDLE OR REDUCED DRIVING POWER COULD OCCUR. It reduces the power output of the engine to prevent more damage. If you switch it off and start it up again, there’s no misfire and no engine check light. 8 random misfire my car has a random misfire code p0300,p0301,p0303,p0304. 8 (AEB) began to run rough today. Audi A4 DOHC 2.