The CEL stays on after two seconds. The fuel pump runs, but no spark, and the fuel pump stays on(doesn't shut off after two seconds) I've checked all fuses, none are blown. I have three distributors I've tried, three ecus, three main relays, two map sensors, and two ignition switches. I can get free parts from a salvage yard, so trying things out isn't a problem.
The car drove into my driveway, and I put a different head on it, and now no spark. When I run a jumper for the CEL blinks I get TDC sensor malfunction, but the distributors should have eliminated that. Parts of the harness have been spliced before, so it may be in that, but I have tried checking that all out. I have a multimeter and have tested a few things, any suggestions?