[greenformula92]

If it it a timing issue i don't see how you could screw the opti up, it only goes on one way. now if the cam is a little out of time compaired with the rest of the bottom end than that would cause a problem. but I would think it would cause the problem all the time. The problem is occuring when the ECM starts to use its sensors. so something related to them is probobly what is screwing it up