2001 audi a8L no power at fuel pump fuse - AudiWorld Forums

Go Back  AudiWorld Forums > Audi Models > Audi A8 / S8 > A8 / S8 (D2 Platform) Discussion
Reload this Page > 2001 audi a8L no power at fuel pump fuse
Notices
A8 / S8 (D2 Platform) Discussion Discussion forum for the D2 Audi A8 and S8 produced from 1994-2002

2001 audi a8L no power at fuel pump fuse

Reply

 
 
Old 09-07-2017, 09:10 AM
  #1
Audiworld Junior Member
Thread Starter
 
Join Date: Feb 2017
Location: MARYLAND
Posts: 27
Default 2001 audi a8L no power at fuel pump fuse

Hello all, some of you may remember my post in regard to my crank not reaching tdc in either direction. Well I have solved that issue which turned out to be bent valves.

Fast forward to today and I have the car completely back together, new gaskets, valves, the whole nine. The car pretty much started right up but ran rough. After turning the car back off I began to inspect the engine and noticed that I did not plug the air cleaner/filter box back in. After plugging the air cleaner in I attempted to start the car but it would not start, tried unplugging the air cleaner but still nothing.

I have spark but no fuel. The fuel pump relay is getting power and engaging but when I check the fuel pump fuse while having my wife crank the car I'm getting no power to the fuse.

I see no signs of broken or worn wires and the fuse reads good. Any ideas?
FirstAudi2001 is offline  
Reply With Quote
Old 09-12-2017, 03:57 PM
  #2
AudiWorld Member
 
Join Date: Jan 2004
Posts: 539
Default Unplug at the pump connection and check for power there while cranking.

I seem to recall that if your pump is dead, you won't see full voltage at the fuse.

Another option is to remove the plastic cover from the Fuel Pump relay located under the passenger's feet, push the contact points closed with a folded matchbook cover or the like, turn the ignition switch to run and the pump should run continuously. If it doesn't run, remove the FP wiring plug in the trunk and test it for power with and without the relay closed. One of the 4 wires should be a switched hot. If it shows full voltage there with the relay closed and the key in run position then it is likely your pump is kaput.

Last edited by BrianC72gt; 09-13-2017 at 08:19 AM.
BrianC72gt is offline  
Reply With Quote
 
 
 


Thread Tools
Search this Thread
Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -8. The time now is 11:32 AM.


 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: