Having some issues with my 07 ctsv with a SC worked fine before a pulley upgrade (#13).
1st is that at wot or hard acceleration the pcm locks up and shuts down. The maf freezes at its last reading as well as the throttle reading and the fuel pump shuts off. Turn the ignition off for a few seconds and it resets . I've tried different pcms as well as a new GM with the same result. It's not going into RPM. Checked the wiring and all is fine. Even checked the pins.
2nd is that the fans come on as soon as its started.
Reply With Quote