1988 camaro 5.7 v8. When cold it will usually start ok, had a bad sumbleing problem but changed the mass air flow sensor and minor tune up plugs rotor and cap. and that fixed most of the cold start problems.
Now after the engine is warmed up and you try and restart it, it will stumble real bad and if you try and give it any throttle it will stall. sometimes it can take 8 times or so before it will stay running.
Also I have noticed when I turn the key to the on postion I do not hear the fuel pump start to run like I used to.
Any Ideas
Thanks Bob
Optional Information:
1988 Chevrolet irocz 5.7
Already Tried:
changed mass air flow sensor minor tune up plugs rotor cap
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