is it my fuel pump?
01-22-2008, 11:18 PM
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is it my fuel pump? car has hard time starting since i got the thing about 5 months ago....... anyways once it starts cold seems fine........but as it warms up idle goes to ****... shaking and ****...........but if i keep picking up speed drives fine... but at stops again goes to **** anybody know? the car is 2001 Z28 A4 Long tubes off road y pipe with borla cat back thats it......is it the pump or the plug wires... cuz the plugs got changed a month ago.........
02-01-2008, 07:20 PM
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May not be the same but my car had a massive vacuum leak and it acted really similar. I didn't think mine was the fuel pump because during acceleration it ran smooth it was at idle and cruising that I noticed it acting up. Mine eventually tripped a SES code as it was trying to run lean. So check out all your vacuum and pcv sys tubes.... and hope it's not the fuel pump cause that's a [insert explicitive here] to change out!
02-01-2008, 07:38 PM
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May not be the same but my car had a massive vacuum leak and it acted really similar. I didn't think mine was the fuel pump because during acceleration it ran smooth it was at idle and cruising that I noticed it acting up. Mine eventually tripped a SES code as it was trying to run lean. So check out all your vacuum and pcv sys tubes.... and hope it's not the fuel pump cause that's a [insert explicitive here] to change out!
