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My car starts but then stalls out after I release the gas pedal. I can hear the fuel pump kick on and run. After about 5 minutes of keeping my foot on the pedal it will stay started until I try to shift into gear. This didn't start happening until I changed the battery to the proper one for the car. I've checked and double checked all the battery connections
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an alternator won't stall your car, the battery provides power to keep the spark going. It sounds like you could have some bad fuel, if you're able to run the throttle manually with your foot and keep it going that would indicate idle control. but if it stalls still when you are giving it gas. I would guess a fuel supply issue, either water in your gas, or fuel pump. Good Luck.
Better have the fuel pressure checked for starters. Even though the pump comes on, your fuel pressure might be too low. Lots of GM vehicles are finicky about proper fuel pressure, especially at start up. It could be a weak pump or failed fuel pressure regulator-a pressure test will sort it all out.
I would replace the fuel filter, double check your work and make sure that all plug wires are securely connected and going to the right place (we all make mistakes sometimes) and check or replace the coil.
On electronic fuel injection pumping an pumping an pumping the gas pedal does nothing without the engine running ! Pushing the gas pedal to the floor will cause the PCM - engine computer to go into clear flood mode .
You have some very interesting ideas here , but not really how it works or is !
The vehicle will go into closed loop fuel control when the engine coolant temp reaches a definded temp an the O2 sensor get hot.
She would run for a couple minutes and die which is open loop when running, closed loop is when the sensors kick and it would die. Pulled spark plugs, they were black meaning no spark. Can only be 2
Black spark plugs indecate a rich condition , over fueled , wet spark plugs indecate no spark .
I would suggest starting with the less expensive solutions first. If you pull the air intake hose off the throttle body and open the throttle with the engine off look down inside if it is black try spraying it out with throttle body cleaner make sure to spray it out good. Afterwards start it you may have to keep your foot on the gas for a few minutes to make sure it doesn't stall then take your foot off the gas pedal and see if it stays running if it does your throttle body just needed cleaned. Note do not use carb cleaner use throttle body cleaner only, carb cleaner can damage the sensor in your throttle body.
Have the idle bypass valve checked, also called idle air control valve.
If that valve is stuck in the closed position, it's not allowing the fuel to bypass the throttle plate to keep it idling, resulting in stalling, but will keep engine running if the pedal is pushed down.
Check your IAC idle air control sensor. This is a sensor that makes sure that your car is getting the right amount of mixture with the fuel. It is located in the right back of the engine behine the intake. If this helped pleae rate
I got it fixed. I just changed the fuel filter and was good to go
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