No Power to Fuel Pump
Posted
#603525
(In Topic #72469)
Local Hero
No Power to Fuel Pump
Mmmm - getting the silver Campaign together and I'm not getting any power to the fuel pump when cranking. Consequently no start
Tried swapping fuel pump relay - same
Bridged connections where the relay goies and pump will buzz ok - so proves wiring to the pump and pump are OK
Ive got the dash out and all the switches are missing but I shouldnt need those should I?
Clocks are connected and working as far as I can see.
Any clues? Was Ok before strip down. What actually signals the relay to pump? I guess there is some sort of pressure switch - where is that?
Cheers
Rich
Tried swapping fuel pump relay - same
Bridged connections where the relay goies and pump will buzz ok - so proves wiring to the pump and pump are OK
Ive got the dash out and all the switches are missing but I shouldnt need those should I?
Clocks are connected and working as far as I can see.
Any clues? Was Ok before strip down. What actually signals the relay to pump? I guess there is some sort of pressure switch - where is that?
Cheers
Rich
Posted
Life Member
Posted
Local Hero
Posted
Old Timer
Take a wire from the battery to the pump to see if its a dodgy earth. I've had a few problems in that area in the past.
Posted
Local Hero
Posted
Local Hero
This was the unreliable bit in my car…
Although my car was originally a 1300, I (and a friend who knew what he was doing) supplied a live to the relevant point in the fuse box, and added a relay and wiring to the relevant places which powered the pump fine. I had the car break down a couple of times though with the same problem you have now…Bridge the relay and it's fine, otherwise - no go!
In the end I added a stand alone switch and relay, as I did not want to get stranded again. All has been fine since then, though obviously, this is not a good fix for those who want their cars to be "Factory" like some of you guys do.
Good luck sorting it out!
Although my car was originally a 1300, I (and a friend who knew what he was doing) supplied a live to the relevant point in the fuse box, and added a relay and wiring to the relevant places which powered the pump fine. I had the car break down a couple of times though with the same problem you have now…Bridge the relay and it's fine, otherwise - no go!
In the end I added a stand alone switch and relay, as I did not want to get stranded again. All has been fine since then, though obviously, this is not a good fix for those who want their cars to be "Factory" like some of you guys do.
Good luck sorting it out!
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Posted
Local Hero
Posted
Local Hero
ops: ops:
Connected the alarm immobiliser and now the fuel pump and ignition works
Cheers rajan - your comment sent me checking voltage on 31b which was 2v and then 2v at the coil which led me to trace the looms and hey presto an plug with no alarm attached!
It's aaaaliiiiiive…..cackling laughter
Connected the alarm immobiliser and now the fuel pump and ignition works
Cheers rajan - your comment sent me checking voltage on 31b which was 2v and then 2v at the coil which led me to trace the looms and hey presto an plug with no alarm attached!
It's aaaaliiiiiive…..cackling laughter
Posted
Local Hero
It is often so obvious that you can overlook it!
Good stuff!
Good stuff!
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All My Build Photos - https://www.flickr.com/photos/pix-al/albums/72157622794406840
My other hobby - www.pix-al.co.uk
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Posted
Settled In
This sounds exactly the same problem i have got at the moment.
There is an immobiliser fitted, but i have no idea what to. When the immobiliser isn't deactivated the engine doen't even turn over, but when it's deactivated it turns over just with no spark or fuel?!
Please see here http://www.vwgolfmk1.org.uk/modules.php?name=Forums&file=viewtopic&t=12627
There is an immobiliser fitted, but i have no idea what to. When the immobiliser isn't deactivated the engine doen't even turn over, but when it's deactivated it turns over just with no spark or fuel?!
Please see here http://www.vwgolfmk1.org.uk/modules.php?name=Forums&file=viewtopic&t=12627
Cheers,
Liam
Liam
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