1991 Buick Regal Q&A
1991 Buick Regal Question: What should th fule pressure be?
Fuel pressure should be 24-40 PSI with the key on, engine OFF. It shoud be 26-32 PSI running. If you have fuel injector OPERATION, not just fuel pressure and spark, and it won't start, I'd be suspicious of a timing chain problem, that the cam is out of time with the crank. Check the injectors for squirt. - Superbob