I think I found the problem
Well you guys may have hit the nail on the head especially like your comment Norbs.
I changed coil packs still had the missfire at part throttle and erractic boost readings at WOT.
I changed the injectors from the other car...same problem.
I pulled the valve cover off on the passenger side and didn't see any broken valve springs.
I pulled the driver side cover off and didn't see any broken valve springs.
but.... when I left the driver side valve cover off, and the engine running, the #1 exhaust rocker wasn't actuating as much as the others
Basically, it looks like 0.120" lift rather than 0.5".
I have a bent pushrod. It's not a significant bend, but it doesn't roll very well on a flat surface (glass table).
I don't think this can cause a significant amount of lost lift. Note that the pushrod was observered to be rotating while the engine was idling.
I suspect another flattened lobe...this time the #1 exhaust valve. (last time it was #3) I still need to remove the passenger side to see if any others are gone.
Well at least I know it's a hardware problem and not a software issue.
The minimum for me to do is remove the intake manifold and inspect the cam from the lifter valley. Does everyone agree that's my next step? That way I can acutally examine the cam lobes before taking it out.
norbs said:
One can not live on one ecu alone, you should start stocking up. last time i looked i had about 6 or 7 here.......
If he is using stock rockers i bet the rocker shaft is bending at the end causing the rocker to bind and cause problems
