Pontiac Problems? Ask a Mechanic for Answers ASAP
Hello, my name is ***** ***** I am a professional here at Just Answer. I have noticed that your question was not getting a response and thought I would see if you still need help with this.I apologize for the delay and I hope I can still assist you with this here. In order for the engine to start and stay running you need good spark to the spark plugs, injector pulse at the injectors and proper fuel pressure. If you are suspecting you are having a fuel pressure concern then I would start first with install a fuel pressure gauge and monitor the fuel pressure while the problem is occurring. Normal pressure should be 38 to 52 PSI. Also scan the system again and lets see if there are any fault codes setting. Post back with the results and we can work from there.
I assume you referring to the fuel pump resistor assembly located on the passenger side of the engine compartment. Below the windshield washer bottle, tucked between the frame and inner fender well, is a big ceramic resistor. If that is the cases then try disconnecting the connector to it and jump the Light Green and Gray wires together and then see if the engine starts and stays running.