2003 Audi A4 Fuel Pump issues

MPHOMM

MEMBER
2003 AUDI A4
1.8L
4 CYL
TURBO
4WD
AUTOMATIC
141,000 MILES

I bought the car used with a timing belt problem. I fixed that and a host of other issues. The car started but was running really rough. The engine light came on with the Low Intake Temperature sensor, which I replaced. Still the car ran rough. I checked the injectors and found one damaged and replaced them all. Since I fixed the injectors, the car has not started. I figured it was the fuel pump since I could not hear it priming when I turned on the key. I replaced the fuel pump relay and that still did not help. I then replaced the fuel pump with a new one, and I heard the pump prime once or twice and then it went dead thereafter. I still have not started the car yet. What could possible be wrong that is cause the fuel pump problem? Any help will be highly appreciated. Thanks

4 Replies

JOHNNYT73

MECHANIC
924 POSTS

Do you have a test light to check to see if you are getting voltage to the pump?

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Thursday, December 4th, 2014 AT 9:27 AM

F4I_GUY

MECHANIC
3,302 POSTS

First thing you gotta do is scan for faults. Sounds like the FP and load reduction relay, but you said you already replaced the relay. Have you gone to the basics and tested all the fuses and grounds?