Lastyear around February I had it chip tuned - Stage 1 (I lost the English word for it) The company who did it said that if I had any issues with turbo pressure while accelerating, 1 Fault code P0171 persists, cleaned MAF, smoke tested the engine and replaced a faulty PCV breather valve. 2. Car hunts at idle, throttle body removed and cleaned, performed throttle body reset by switching the car ignition on without starting the engine, pressed throttle for 3 seconds, turned ignition off and waited 2 min's before Cheshire Jan 8, 2012. #3. Mine's a 2008 143 and just got it remapped last week. The performance increase is brilliant,upto 175-180 bhp and torque up from 235 to 290. Its not just the acceleration it pulls a lot better from low revs and 3rd gear is superb. Enginemisfire. There have been several reports of engine misfires in Audi A4s manufactured between 1997 and 2007, as well as in 2009 and 2011. Likethe 208bhp 2.0-litre TFSI petrol variant (this the sole petrol option), the 3.0 TDI engine comes with Audi's clever S Tronic twin-clutch 7-speed semi-automatic gearbox which, if you're quick with the steering wheel paddles, will get this particular A4 allroad through the 60mph barrier in a brisk 6.4s, half a second quicker than the petrol Hello I owe a 2009 Audi A4 2.0T Turbocharged with a 2.0t TFSI engine and for the past months I’ve been experiencing misfires on cylinder 3 and cylinder 4. I have Hello I owe a 2009 Audi A4 2.0T Turbocharged with a 2.0t TFSI engine and for the past months I’ve been experiencing misfires on cylinder 3 and cylinder 4. I have done some common fixes like changing the spark plugs, coil pack, PCV valve, and fuel injectors but I’m still having the same problem. I have a bit of symptoms when the car is on P0700is a common code if it’s an electrical issue related to the transmission. If something has gone wrong in the transmission, your A4 may not be able to accelerate anymore, or it’ll. If it can no longer shift, it could be caused by a solenoid/valve body that has gone bad, clutch packs, debris, and much more. Ifthe plug is projected out by default, it means the mechanism to pull it back to default state is no longer working and the system will be over advanced when it doesn't want to be. Pressing the plug inward is likely an invalid state. This is all speculation. 2009 A4 Avant 2.0T quattro Prestige, 255k miles. A4(B8 Platform) Discussion - IE: Very loud SNAPPING noise from the engine area A4 2.0 TFSI - Hello, I've had some issues with the Audi A4 2.0 TFSI 2009 since I bought it. It started with oil consumption which was fixed with PCV valve replacement. A few days ago I was driving to college and went from 4th to 3rd gear Kk11.