Engine acting up..

[Grim[Z34]]

Hey guys/girls.. havent been on here in forever.. but anyway i got a 95 3.4dohc and it sometimes rev's up to about 3000 rpm's in park at idel..

Then the other day I was going down the express way going 70mph and the engine light came on started reving up real hgh to about 3500, then reved back down and started dieing out.. then it started driving fine agan and engine light went off..

Today I tried to start it and it wouldnt start it turned over fine but would'nt start untill I put the gas peddle to the floor, then it would start ..

I think it might be a mass air flow sensor or something.... help me out plz...
engine light doesnt come on..so cant take it to go get read..

[Grim[Z34]]

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[Grim[Z34]]

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[corning_d3]

Have the codes pulled. Even though the light is off, the codes are still there until something like 50 cycles.

[Scott205]

hmm, TPS? sounds like my lumina when the tps went. Also sounds like my Cutlass.. but you don't want to know what happened there... a new engine later

[Juglenaut]

Does a map make drastic rpm changes? I doubt it, then why would a maf...

You may have manifold leaks.

Sounds like the tps was not the real problem in your case.

[Grim[Z34]]

Well i dont know what a TPS is so if you can tell me that would be cool.. Also I was leaving my driveway today and the car died on me... Ive had it with this gd 3.4 i goto have something more dependable.. im going to buy an old beater truck after new years and save my money up to drop a shiny new 3.8 II in it... I cant handle the problem after problem anymore.. I goto idmit when its running right you can tell but I rarelly see those days..

[Juglenaut]

well, I don't really know what to tell you... It cost money to keep anything up....It may just be a simple fuel pressure regulator.

[Grim[Z34]]

Yah i know it takes money... and this is the 2 engine ive had in the car...

[Grim[Z34]]

I drive the thing like a grandma going to church...