Hi, First Post. I am in NE Italy and have a 2005 GTO LS2 and 4l65e swapped into a 70 Lemans Sport. The guy who wrecked the GTO donor gave me the HP stuff with the car and I am learning. Motor has Callie stroker, AFR heads, cam, Ford green 42 injectors etc. Tranny had just been done to level 4 by Finish line. The PO did some tuning on the car.
I copied the tune and deleted VATS and updated gears etc. Deleted rear sensors, have PSI harness. Car starts and runs pretty good but is very rich. I am sure he did fuel adjustments. I wanted to take it back to a stock tune and go from there so I tried a couple of different stock tunes from the repository and the tune that is a demo in HP for E40 05 GTO and did the compare overwrite on the tune but car is very hard to start and will only run if revved up and is a little rough. Back to previous tune and fires right up.
Short of going through all the settings one by one does anybody have an idea what might be the issue? I did the delete VATS.
I noticed when I do the compare overwrite the screen does clear like the HP Tuners video shows, the DTC menu still shows.