I have a question about the ignition timing on an 85 305 TPI. I have always had trouble when I have needed to time the car. I know that I have to disconnect one wire that comes from the computer so that it is not advancing the timing electronically when I set it. Everywhere that I have read says that this wire can be disconnected above the heater box; it is the one that is haning out of the wiring harness. When I diconnect that wire and hit look at the timing light, the mark apears to be about 90 degrees off. If I try to align the mark on the pulley, the car will die. It is just too far off. The engine has been re-built, but I know the balancer is the correct one. I had the same problem when I first bought the car and tried to time it. Same story with the original balancer. Has anyone had this problem? Is there another place that I can disconnect the timing wire, on the distributer for example? I just replaced the cap, rotor, ignition control module, ... trying to get code 42 from popping up in the mornings. I would like to make sure my timing is correct. Any help would be appreciated. While I'm at it, anyone know what else could be causing code 42 on that car?
85 iroc 305 TPI 179,000 miles--tires spinning the whole way- posted
19 years ago