Running real bad
I'm tired, I'll give you the quick version. I posted when I first got the car how about 1 out of 10 times when I start from a stop, the car will fall on it's face for a second and then after a second it'll rev up and go. This persisted through a rebuild, so it had to be parts I reused or mapping.
In the last couple months, I started throwing a code for a bad TGV input, p1096 I think. Now when it's cold, it really falls on it's face. If I just floor the gas without being in gear (or in gear) it sputters, backfires once or twice, then revs out. It's a good 2 or 3 seconds before it starts revving. This happens maybe 3 out of 10 times when warm. It also runs jerky and crappy until I hit boost, and even then in boost maybe one out of 20 times the engine will cut 2 or 3 times quickly and jerk. But it seems to run way better in boost.
I ripped apart the manifold today and the TGV's are in the open position, so they are not stuck closed. Whether the computer is holding them closed I cannot say, but that was my theory. I thought something was making them stay closed not allowing air in, and when in boost it was enough pressure to push it open. My tuner agreed this was a definite possibility.
As I said, the valves are in the open position when removed. My theory was that they were stuck closed. Should I bother with the DIY delete on the off chance the ECU is on the fritz and holding one or more closed? Any other suggestions while I have it this far apart?
355 awhp fp green six speed wagon in Corvette Atomic Orange