did you use all new gaskets on intake mani (between head and between the plastic upper), and the throttle bodies?
heaps of people will tell you sensors usually chuck a DTC when they're faulty. but if they are slightly out of spec then they wont set a DTC and you'll have to compare known good specs against yours to isolate the fault.
tuning adds another huge variable. my car has a throttle remap using the popular 'smooth throttle' map on the forum here. i have not reflashed or reverted my ecu to stock in an attempt to resolve my issue. i have my reasons but in a nutshell, the car ran fine with the software tweaks for a while before it started happening
|