A dirty air filter can cause your engine to stall out, or only run at higher rpm's. Try changing the air filter to see if the problem clears up.
Fuel pressure regulator, or a stuck relay.
NNo less then 55 PSI. and no more then 62 PSI. Factory specs. are 55 to 62 PSI. NEW ANSWER: hey I'm sorry the answer that I just give you is the fuel Pressure for that engine. You should have at least 25 to 30 LBS. after engine is at running temperature- HOT Higher pressure is okay too. This is OIL pressure.
The throttle position sensor determines the amount of throttle used when the engine is running at various speeds. If the sensor is faulty, it can be replaced by ordering a new part.
If the engine is not running the pressure should be 35 to 40 psi. If the engine is running the pressure should be 30 to 45 psi.
Key on Engine not running 55 - 61 psi. Engine running pressure should decrease 3-10 psi.
With key on engine not running pressure should be 9 to 13 psi Engine at idle pressure should decrease by 3 to 10 psi on a throttle body. On a multi port injection key on engine not running pressure should be 41 to 47 psi. Engine running at idle pressure should decrease 3 to 10 psi. Central multiport fuel injection key on not running should be 58 to 64 psi. Engine running at idle pressure should decrease 3 to 10 psi. Central sequential electronic fuel injection key on not running pressure should be 55 to 61 psi. Engine running at idle pressure should decrease 3 to 10 psi.
The fuel pump pressure may vary by vehicle. However, on average the fuel pump pressure with the engine running should be between 4-6 psig.
For the operator to monitor the oil pressure of the engine. If the oil pressure drops below average when running, the engine is in trouble.
key on engine not running 58-64 psi engine running at idle pressure should drop by 3-10 psi
50 to 85 psi engine not running. 25 to 35 psi engine running.
you need at least 50 psi to run and 55 or so to keep it running thats with cpi engine the others use less pressure and a different fuel pump....
If the place where the dipstick for the oil is comes out of the engine it will cause an oil leak. The engine might not be able to build up enough pressure to keep running either on the 1984 Cutlass Supreme. It should be replaced.