3 Attachment(s)
2005 C6 corvette flood car, help me out
Hey all,
We're working on a 2005 z51 flood car, building a race car. Car is completely gutted, and only has the ECM, BCM (from a different car), RCDLR (from a different car), and INstrument Cluster. Used HPT to get rid of VATS and now car starts fine (with a jumped started relay). GMLAN wires from ECM are cut and sired directly to the ODB2 port. This was the only way I could get HPT to talk to the ECM. Dash works, and the car generally runs, and idles ok (a bit bouncy). Revs ok at part throttle (30%), but WOT it basically sounds like crap, and will not rev. If I gradually increase throttle, I can get it to about 5k before is starts to bog. This is all in neutral, but it doe the same while moving in the lot. I flashed out TC and TM thinking that might be it, but made no diff. So, to sum here are the facts:
- car is a 2005 C6 flood car
- GMLAN (tan and tan/black wires) cut and spliced direct to OBD2 port, so ECM is not on the GMLAN with the rest of the car
- Idles ok, a bit stumbly
- Won't rev past ~5k at part throttle
- WOT car sounds really bad, I assume super lean
- Stock engine, stock tune, removed VATS, CAGS, TC/TM and that's about it.
I'm a total newb with HPT, so not even sure what to log so I can get help on this ... Attached is the log I made this eve, along with the dtc and tune file. Anyone have any suggestions? I do notice a few DTCs for the throttle actuator. Doing some tests it appears that the gas pedal is able to open the throttle up to 100%, but is it possible the ECM is not seeing the throttle open, and so is not adding fuel, hence leaning it out completely? Anyway, feel free to post suggestions, or what else I should log (and how!) I'll be back at the shop on Friday to test more stuff.
