Pontiac Problems? Ask a Mechanic for Answers ASAP
Hello, Eddie here and I will do my best to help. If you have fuel pressure, and spark, it's likely you are missing injector pulse. Can you get a noid light, (usually you can borrow one from a local auto parts store for a small deposit and get your deposit back when you bring the tool back) The noid light plugs into the injector harness in place of the injector. It will blink when cranking indicating injector pulse. Or if you spray some starting fluid in it, does it hit or run briefly then? Is the security light doing anything odd? Let us know, Thank you.
Injector pulse is provided by the ECM. It may be a passlock key issue. or it could be the ECM itself. If you just turn the key ON, does the security light go out? or does it stay on? just above the 2500 mark on the tach or so.
Alright, let us know, Thank you.