I have an EVO 4 with the following mods:
Evo 4 ecu
Evo 5 engine
Evo 5 injectors
Evo 4 turbo
HKS intercooler and hardpipe kit
The problem I have is that the car is hesitating and bucking between 1200 and 1800 rpm, it can be felt especially in gear, if you drive along at 1000 rpm and try to...