964 ignition problems stumped
Posted: Wed Jun 25, 2014 7:22 pm
Hi Steve My friend and I both seem to have the same problem, the primary plug that comes from the DME computer{ECU} will run my 91-964 on the primary side igniter-coil or the secondary side without issue even when other side is disconnected nothing wrong there, however the secondary plug does not work right, motor will start and backfire when used as only plug. The wires seem to Ohm out Igniters checked coils checked WOT switch checked, idle micro checked, harness checked out, this is a new 5hr. motor with 993SS cams headers Steve Wong chipped for race gas, only making 240 at the wheels. Posted on Pelican Parts tech. one response was hall sensor bad , however I can't find that part anywhere Was wondering what do you think?? thank you Bob