Hello guys
I just bought a 2003 60kw roadster but I have an issue with it. When warm, the engine stops accelerating at full throttle. I can hear slight misfiring from the exhaust when this happens. If I release the throttle then it can rev up again. I changed map and air temp sensors and o2 sensors (this one was faulty). Turbocharger needed rebuild so I replaced the CHRA. Wastegate is ok. Boost is stable (rock solid 1 bar). I'm sure it's not going to safe mode. There is no error code from ECU.
I wonder what I could check now. I wonder if a faulty fuel system (pump or injectors) could not be the culprit. Spark plugs are new. I changed the fuel pressure regulator as well.
Using Torque I noticed that STFT is increasing to about 10-20% when accelerating. from my opinion it looks like the engine is missing fuel and the ECU tries to compensate with trim. But maybe this is a normal ECU behaviour I don't know. Is it possible that the fuel pump flow decreases when warm ?
Thanks for sharing.
Jerome
I just bought a 2003 60kw roadster but I have an issue with it. When warm, the engine stops accelerating at full throttle. I can hear slight misfiring from the exhaust when this happens. If I release the throttle then it can rev up again. I changed map and air temp sensors and o2 sensors (this one was faulty). Turbocharger needed rebuild so I replaced the CHRA. Wastegate is ok. Boost is stable (rock solid 1 bar). I'm sure it's not going to safe mode. There is no error code from ECU.
I wonder what I could check now. I wonder if a faulty fuel system (pump or injectors) could not be the culprit. Spark plugs are new. I changed the fuel pressure regulator as well.
Using Torque I noticed that STFT is increasing to about 10-20% when accelerating. from my opinion it looks like the engine is missing fuel and the ECU tries to compensate with trim. But maybe this is a normal ECU behaviour I don't know. Is it possible that the fuel pump flow decreases when warm ?
Thanks for sharing.
Jerome
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