T3 Engine Upgrades - Fuel Pump Issues 8v GTI

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Fuel Pump Issues 8v GTI

Printed From: The Brick-yard
Category: T3 Section
Forum Name: T3 Engine Upgrades
Forum Description: Forum for tuned or alternative engines.
URL: http://www.brick-yard.co.uk/forum/forum_posts.asp?TID=92599
Printed Date: 20 Apr 24 at 13:32
Software Version: Web Wiz Forums 12.06 - https://www.webwizforums.com

Topic: Fuel Pump Issues 8v GTI

Posted By: 7zark7
Subject: Fuel Pump Issues 8v GTI
Date Posted: 14 Apr 17 at 21:57

Hi,

I was reversing the van out of the garage today and it stalled , on trying to re-start i can clearly hear that the fuel pump is not running. I have tested the voltage at the pump and it shows 0v. I then pulled the relay at the ECU and used a paperclip on pins 87 and 30 to bypass the relay - the pump does not run. I can see no blown fuses and everything else looks in order ... really stumped , does anybody have any ideas what else i could test.

Replies:

Posted By: jaber
Date Posted: 15 Apr 17 at 06:22

Don't know about your pump problem but I do have one for sale if yours is kaput

Steve

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take yer time there's a second prize

Posted By: 7zark7
Date Posted: 15 Apr 17 at 11:08

Some more on this , i took a live wire from the battery and then tested the fuel pump which works. I then tested the live on the 30 connection of the fuel pump relay which is also works - i.e. the pump works. Managed to hold all that together and cranked the car - still no joy. even though i can clearly hear the fuel pump running.

on the other side of the fuel pump relay i am only getting 1.5v when i should be getting 12 , i have tested the ECU relay and confirmed it is getting 12v. I have ordered a new ECU relay for the time being but if anybody has any other thoughts or ideas please let me know.

Posted By: Titus A Duxass
Date Posted: 15 Apr 17 at 13:53

Make sure that the relay contacts have not walked out of the back of the relay base.

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Bollocks to it all!!
51°24′N 12°52′E

Posted By: rowlesy
Date Posted: 15 Apr 17 at 20:07

and check your earths. everything else work?

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UberFukz broke another! sucky sucky five dollah!

always out numbered never out gunned! RWS welding 07846 380 467 (worcs)

Posted By: 7zark7
Date Posted: 15 Apr 17 at 20:44

yes but i will check again , the earths look ok - it was kind of funny how it just cut out when reversing and would not start again.