Close
Car wont start
1991 Chevrolet Lumina

Car wont start

(1991 Chevrolet Lumina)
initially, my car would not run nor would it start upon reaching operating temperature(warmed up). started off by changing fuel filter. Had ICM checked and it tested positive. Checked fuel pressure and found it to be mid/low 40's. i was told this is not sufficient pressure for this particular car. changed fuel pump and pressure spiked to 90 for about 5 minutes. Gas started flowing out of intake pretty heavily(changed fuel pressure regulator). fuel pressure is back down to low 40s and car still wont start. will fire if using starting fluid,( only tried this once)but will not run. is the fuel pump i got at the store a bad pump? its a bosch. I have been scratching my head trying to figure out what the heck is wrong with my car. what is the required fuel pressure? and any other ideas would be more than welcome
2 answers & 0 comments
Popular Answer
on August 17, 2010
i would ohm out injectors for shorted injector. if you find one or two, you may have to replace ecm as well as it will burn out the driver in the ecm.

Roy
Sign in to reply
General Diagnosis
$88 - $111 Learn More
on August 17, 2010
i would ohm out injectors for shorted injector. if you find one or two, you may have to replace ecm as well as it will burn out the driver in the ecm.

Roy
Sign in to reply
on August 30, 2010
almost sounds like an egr valve problem.
Sign in to reply

Similar Questions

View answers to similar questions from RepairPal's community of auto experts and enthusiasts.
It starts up drives off slow you can press on the gas it revs but dont go nowhere then starts slow the trans failsafe...
I have a pontiac boneville 03 the car won’t inject key nor will go fully into off position but stays in accessories i...