S12OC UK Forum  
S12 World Affiliate Program
S12 United Kingdom / Club-S12 International / / S12 France / S12 Eastern Europe / S12 Sweden

Go Back   S12OC UK Forum > Main Categories > S12 Discussion
User Name
Password
FAQ Members List Calendar Today's Posts

Reply
 
Thread Tools Display Modes
  #1  
Old 29-05-2014, 21:21
grahamhumm grahamhumm is offline
Registered user
 
Join Date: Jan 2014
Location: Leicestershire, Melton Mowbray
Posts: 55
grahamhumm is an unknown quantity at this point
Default Fuel pump won't stop priming

Anyone help me I've pulled every relay possible and it still primes. Is there even one for it?? Plus my fuel guage won't work? Anyone please help Ive spent hours chasing this crap lol
Reply With Quote
  #2  
Old 29-05-2014, 22:07
CNHSS1's Avatar
CNHSS1 CNHSS1 is offline
PAID MEMBER
 
Join Date: Jan 2006
Location: shrewsbury
Posts: 606
CNHSS1 is an unknown quantity at this point
Default

std ET fuel pump 'prime' is a 5second timer, then cuts out. some of the scimitar guys that use ETs and have ECU driven fuel pump issues, wire the pump into and ign live via a crash switch. Pump then runs permamnetly when the ignition is on, but in the event of a crash the 'crash switch' senses big impact and cuts fuel pump
__________________

Racing is life. Everything else, before and after, is just waiting.
- Steve McQueen
Reply With Quote
  #3  
Old 29-05-2014, 22:10
grahamhumm grahamhumm is offline
Registered user
 
Join Date: Jan 2014
Location: Leicestershire, Melton Mowbray
Posts: 55
grahamhumm is an unknown quantity at this point
Default

So you rekon it's constantly on live through the ignition?
Reply With Quote
  #4  
Old 29-05-2014, 22:18
CNHSS1's Avatar
CNHSS1 CNHSS1 is offline
PAID MEMBER
 
Join Date: Jan 2006
Location: shrewsbury
Posts: 606
CNHSS1 is an unknown quantity at this point
Default

is it recently happened or always been like it? if theres a short to earth it can make the pump run permanently as im pretty sure the ecu switches the earth not positive. On the scimitars the fuel pump cable has a shielding which is earthed one end only (ecu end iirc). if it earths the other end, that can make the pump run all the time
__________________

Racing is life. Everything else, before and after, is just waiting.
- Steve McQueen
Reply With Quote
  #5  
Old 29-05-2014, 22:28
grahamhumm grahamhumm is offline
Registered user
 
Join Date: Jan 2014
Location: Leicestershire, Melton Mowbray
Posts: 55
grahamhumm is an unknown quantity at this point
Default

It's always done it, bought it as a project, it's one of my last things on my list to do
Reply With Quote
Reply


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

Forum Jump


All times are GMT. The time now is 09:36.

Powered by vBulletin®
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.