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ctrlz · 01-23-2018, 12:26 PM

The D circuit on Chevy's appears to include three sensors.
Accel pedal position
TPS1
TPS2
This link is for Cruze:
http://www.autocats.ws/manual/chevro...520159.en.html

I suspect you are getting a fallout because the ECM is applying 5V to one of the TPS sensors and getting a reading out of the expected range. This is undoubtedly caused by some combination of the mods you have done to intake and exhaust which affect A/F mixture. Remember, when you go to wide open throttle you are in open loop, and the ECM will be looking for everything to be hunky-dory vis-a-vis the fuel maps it has on hand.

01-23-2018, 12:26 PM	#8
ctrlz Drives: 2017 2SS, 50th pkg, M6, MRC, NPP Join Date: Jan 2016 Location: Ocean City, NJ Posts: 3,578	The D circuit on Chevy's appears to include three sensors. Accel pedal position TPS1 TPS2 This link is for Cruze: http://www.autocats.ws/manual/chevro...520159.en.html I suspect you are getting a fallout because the ECM is applying 5V to one of the TPS sensors and getting a reading out of the expected range. This is undoubtedly caused by some combination of the mods you have done to intake and exhaust which affect A/F mixture. Remember, when you go to wide open throttle you are in open loop, and the ECM will be looking for everything to be hunky-dory vis-a-vis the fuel maps it has on hand.