CAR SPUTTERS WHEN THE GAS PEDAL IS PRESSED

2004 Dodge Neon

Tiny

ryssa1205

April, 10, 2008 AT 1:58 PM

Engine Performance problem
2004 Dodge Neon Front Wheel Drive Automatic 53800 miles

I drive a doge neon 04. If I am driving and I press the gas pedal lightly the car drives with no problem, but the minute I " mash down" or press it a little harder the car jerks/sputters. The car does not cut out so it is not a blocked catalyst and I changed the mass air flow sensor and it didnt do this for a day and then started back again. The car also gives a hard start I must turn over the engine for a long time before it starts. COuld you please help and point me in the right direction. I hooked it up to a computer and the only code was p0440 and that is loose gas cap or I put gas with the car on.

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