Pontiac B'ville?

[Ben C]

Have a '97 Pontiac Bonnieville. When i start the car sometimes its just dies. others it will idle, but if i keep my foot lightly on the gas its not bad. i can drive it but if i try to punch it AT ALL it coughs and dies. just changed the fuel filter, air filter, and fuel pump. any ideas??? thanks

 

[gotspeed7883]

COULD BE BAD IDLE AIR CONTROL VALVE, BAD TPS , OR NEEDS TUNE UP.

 

[Tony C]

Fuel pressure control valve, or MAF Sensor. It could be a lot of things.

 

[baldie]

it might be the throttle position sensor, idle air control or a vacuum leak.