kylenautique
I'm Awesome
I haven't read through all the pages, so I'm sorry if you have tried all of these things.. I would recommend replacing the ignition module with an AC Delco brand. I had a TBI system that was converted to run MPFI for a TPI system. I always had issues with the ignition modules failing. I've also had other friends with the same issue. I would install a new one, and personally, I would install an AC Delco brand distributor with it. That solved my issues. When the ignition modules fail, they can make for rough starting..no starting and a serious lack of power. I would also check your injectors to make sure they are spraying fuel properly. Just shine a timing light on them. Make sure your advance is working. In base timing, it will kill the advance by disconnecting the wire by the distribtor. When connected, if you look for the timing mark with a timing light, it should bounce all over the place. If its not, that brings you back to the distributor. Last thing... The ECM could be the issue. They are usualy pretty rock solid, but sometimes they can develop a hickup. Since you don't have a 4l60e, you could upgrade to the Dynamic EFI computer which is sooooooo much better than the stock ECM you are running. https://www.dynamicefi.com/
Last option... Ditch the system and throw a Holley Sniper on it
Good Luck man, OBD1 is so simple, but it can be a serious pain in the a$$ sometimes.
Last option... Ditch the system and throw a Holley Sniper on it
Good Luck man, OBD1 is so simple, but it can be a serious pain in the a$$ sometimes.