[asylum]

Hi All,

E91, 335ix, N55, 6MT. Stock.

I have code 5F77 that appeard 2 times in the last 3000 miles. Always under long full throttle acceleration on the highway between 2500 and 4000 rpm. Car went in limp mode (1500 rpm rev limiter). I also have code 55C3, but I think this is just the consequence (limp mode).

I read and reseted with my 30$ ebay tool.

The only abnormal thing I feel : between 2500 and 4000 rpm, long full throttle, acceleration is not linear. A bit step by step. And when hearing, it seems the turbo stops whisspering during fraction of seconds during acceleration. Otherwise, car runs perfectly smooth.

I though about a bad boost solenoid but it seems that 5F77 has someting to do with throttle position sensor, hasn't it ?


Thank you for your help...