Quote:
Originally Posted by steve shadows
Make absolutely sure that your Coil Pack harness is grounded, then grounded and then grounded again. Also make sure your coil packs arent dead.
If your ecu burn out an ignition driver....or one of the pins for one of the Coil Pack signals is messed up this can happen too...
Happened to me in one of the most important races of my S13's life, when I was racing a highly tuned S15 on the FWY, still hung with Paul's car but the ignition kept cutting out hard every 5500=6500 rpms
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Yesterday I doubled checked this....coilpack harness is grounded to the back of the head as it should be. Head is grounded to the firewall...I cleaned up the head--->firewall connection by sanding down the firewall to the metal.
Coilpacks have always been okay, spark first blew out a couple weeks ago....I just figured it was hot out and need to gap them down a bit.
However, now I can't even pull to redline at 10 psi even....just not sparking.
Gonna change oil soon and double check coolant, but I am 99% sure headgasket is fine...
Also, the map in the 10 psi region should NOT be so rich as to cause this, as I have previously driven the car under 10 psi with no problems 100s of times.