who can ajust air fuel ratio on XKR 2001 I have installed smaller top supercharger pullet new fresh air intake-improved exhaust ?

 

I wouldn’t be too sure you need to do anything . Have you driven the car since the modifications ?

Z

 

Unless you've done something seriously radical, the ECU will compensate. If you've done something so radical that the airflow is outside the ECU's parameters, you're likely looking at upgraded injectors and a remap of the ECU and a few cubic dollars. Maybe someone here knows a tuner. I'm under the impression that the X100's ECU code is proprietary and not many tuners will futz with it.