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View Full Version : A3 BFQ Engine power issues at low RPM



AirBoy
03-02-2015, 10:26 PM
Hi all.

I'm new here, read a lot about A3's with BFQ engine but still cannot identify my problem.
The engine have a rock strong idle at around 670-700 when it is warm, 800-900 while is cold but is shaking if I throttle at around 1200-1400rpm (even if it is without load) and feels like there is no power below 1800-2000rpm. When I pull out of roundabouts or hills it is painful for the engine, and it's fuel usage is huge. Smoke looks and smells well. Above 1800, at around 2000-2200 rpm the fuel consumption is well and power is back as it should be. I remember, few month ago, it was hell of a strong engine even at low RPM.
Changed the air filter with brand new one, no leaks on pipes/hoses, checked the MAF, looks clean for me but have not tried to disconnect it, I will try that tomorrow. No error codes logged. T.B. looks clean, have not dismounted it yet as it is little bit difficult for this type of engine.
I would apreciate if somebody can help me. I can make logs through VAG-COM while driving, maybe certain data will reveal the problem for someone specialised who can interpret the data.
I am using only Momentum 99 Petrol by Tesco as with the standard 95 is worst.

Engine is BFQ, 1.6 Petrol in an A3 8L, 5 door.

Thanks in advance,
AirBoy