Car Running Too Powerful And Jerking

[Rolls]

Airflow cut due to the higher boost at low revs than the standard tune expects.

You need to have the ECU replaced or remapped, personally I would opt for an RB20DET ECU with a nistune and an aftermarket controller for the VCT, other option is Z32 ecu which can control the VCT on its own.

It is unlikely you are actually maxing the AFM out, if you are (need to look at the actual volts it is outputting) then a Z32 AFM is required, if you do this you have to upgrade the ECU to aftermarket or a nistune.

Simple solution for now, remove the boost controller until you can fix the above problem.

Edited May 8, 2011 by Rolls