needspeed6 wrote:Injector duration increases dramatically when the engine poorly, around 14-15 ms.
So it is screaming for more fuel. Graphing Injector Duration, O2S1B1 & O2S1B2, Temp Sensor, MAF, MAP PID's looking to see if it is going lean and the durations rising, differences in the 2 banks then when it is running better, are the O2's working properly. Can you force them rich and lean
VVT Values ? Perhaps paralyse VVT. When its bad, introduce sniff or propane into it, does it improve it ?
Sticking with basics, Fuel Pressure and Flow ? Fuel Filter ? Amp clamp on fuel pump (Voltage Confirmed)