#8891, "RE: not getting spark in cyl 4-1 after head gasket replacment" In response to In response to 2 Mar-21-05 09:41 AM by thedawg
If its not coil, not ignitor/transistor, not plug wires, then it's either ECU or wiring harness. Probably injector driver on the ECU. Unlikely maybe, but that's what I'd check next anyways.