Go Back   Third Generation F-Body Message Boards > Tech Boards > V6
Sign in using an external account
Register Forgot Password?

V6 Discussion and questions about the base carbureted or MPFI V6's and the rare SFI Turbo V6.

Welcome to ThirdGen.org!
Welcome to ThirdGen.org.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, join the ThirdGen.org community today!


Reply
 
Thread Tools Search this Thread
Old 07-31-2009, 01:54 PM   #1
Junior Member
 
Join Date: Jul 2009
Posts: 21

Classifieds Rating: (0)
HELP! fuel pump not working

! its a full restoration project and my fuel current cable is not getting current. i checked the relay its fine. the cables are good too. does the computer have anything to do with the fuel pump? or the relay is the only thing controlling it? I NEED HELP! thank you!!
aldoscitech is offline vBGarage Page   Reply With Quote
Old 08-01-2009, 12:26 PM   #2
Junior Member
 
Join Date: Feb 2008
Posts: 7

Classifieds Rating: (0)
Re: HELP! fuel pump not working

When you turn the key to the on position with the engin not running the computer will shut off the fuel pump after two seconds.
wqcode is offline vBGarage Page   Reply With Quote
Old 08-01-2009, 04:25 PM   #3
Supreme Member
 
KrisW's Avatar
 
Join Date: Sep 2004
Location: Lakeland, FLA/Somewhere near Herat, AFG
Posts: 2,344
Car: 88 V6 'bird/89 T-Top 'bird/88 IROC
Engine: Buick 6 swap coming/305 TBI/TPI sbc
Transmission: V8 T-5/700R4(brken POS)/700R4
Axle/Gears: unk/unk/unk

Classifieds Rating: (1)
Re: HELP! fuel pump not working

As stated above, the ECM will turn the pump off after "priming."

Do you ever hear the pump come on and then shut off after Just turning the key to the "run" position?

Also, we need to know what year the car is to help.
__________________
"Towering genius disdains a beaten path. It seeks regions hitherto unexplored."
--Abraham Lincoln

Project "X" is now alive! Stay tuned for updates!

USE B-O-P!!
Stay original!
KrisW is offline vBGarage Page   Reply With Quote
Old 08-02-2009, 07:29 PM   #4
Junior Member
 
Join Date: Jul 2009
Posts: 21

Classifieds Rating: (0)
Re: HELP! fuel pump not working

its a 2.8L V6 1986. what fuses on the fenderwall? next to the battery?
aldoscitech is offline vBGarage Page   Reply With Quote
Old 08-09-2009, 11:36 PM   #5
Member
 
Join Date: Nov 2008
Posts: 161

Classifieds Rating: (1)
Re: HELP! fuel pump not working

Quote:
Originally Posted by aldoscitech View Post
its a 2.8L V6 1986. what fuses on the fenderwall? next to the battery?

The "on the line fuse" on this camaros/firebirds is located on the passenger side fender in a little black square boc you have to open...
There is also a fuel pump fuse on the fuse box under the dash..it says "FP" on it
vargasjc is offline vBGarage Page   Reply With Quote
Old 08-10-2009, 09:39 AM   #6
Junior Member
 
Join Date: Jul 2009
Posts: 21

Classifieds Rating: (0)
Re: HELP! fuel pump not working

hmm yes i had already seen the two fuses that are around the battery.. but they were both good. and the fuse box under the dashboard has the letters all fadded out so i cant read anything its like they had never been there.. but i checked them all and they were all still good.... another question what is ECM and ALDL? ECM is the computer right?
aldoscitech is offline vBGarage Page   Reply With Quote
Old 08-12-2009, 07:51 PM   #7
Supreme Member
 
Maverick H1L's Avatar
 
Join Date: Aug 2003
Location: LeRoy, NY
Posts: 5,572
Car: 1987 Firebird... in pieces.
Engine: 3.1L V6 LH0 soon to be 3100
Transmission: Borg-Warner T-5
Axle/Gears: 2HL 3.42 open

Classifieds Rating: (6)
Send a message via AIM to Maverick H1L Send a message via Yahoo to Maverick H1L
Re: HELP! fuel pump not working

For future reference: The ALDL is the factory diagnostic connector, a 12 pin connector located behind a cover on the driver's side foot well insulator where the driver's right knee usually is (by the radio and heater controls, assuming you're not in Europe, which I don't know about). The ECM is the engine computer, the Engine/Electronic Control Module.
Moving on:
2 things run the fuel pump: The ECM, through the wiring and the relay, and the oil pressure switch, which is a 2-wire sensor like thing screwed into a port on the oil filter adaptor (the 1-wire thing is for the oil pressure light or gauge). If the relay doesn't work, then the oil pressure switch should run the fuel pump once the switch sees oil pressure.
There is an easy test for the ECM and fuel pump wiring. Uncover your ALDL. Get a battery power source from SOMEWHERE, and a ground. Put the ground wire in the top right terminal of the ALDL (terminal A) and the battery power source momentarily in the lower left terminal. If the relay is good and energizes, the fuel pump will run (meaning your ECM is shot). If not, you could have a bad pump, relay, or wiring. Also check to see if the oil pressure switch is working by connecting both terminals with a jumper wire (one wire is constant hot and the other runs straight to the pump). If the pump runs, the switch is bad.
Also, you have to crank the car for a few seconds to build enough oil pressure to close the oil pressure switch. If the pump doesn't run when the terminals are joined at the switch, then you can try to jar it into motion with some method (jammed pump or bad wiring in pump) by somehow vibrating the gas tank sharply.
Maverick H1L is online now vBGarage Page   Reply With Quote
Old 08-12-2009, 07:51 PM
ThirdGen
1992 Camaro




Paid Advertisement


Reply

Go Back   Third Generation F-Body Message Boards > Tech Boards > V6

Tags
1988, 3rd, 89, 91, camaro, connector, diagnostic, ecm, energizes, fuel, gen, hot, pump, wire, working
Thread Tools Search this Thread
Search this Thread:

Advanced Search

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

 


1982 Camaro '82 || 1983 Camaro '83 || 1984 Camaro '84 || 1985 Camaro '85 || 1986 Camaro '86 || 1987 Camaro '87 || 1988 Camaro '88 || 1989 Camaro '89 || 1990 Camaro '90 || 1991 Camaro '91 || 1992 Camaro '92


All times are GMT -5. The time now is 02:27 PM.


Powered by vBulletin® Version 3.7.5
Copyright ©2000 - 2012, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.5.2
All content copyright © 1997 - 2012 ThirdGen.org. All rights reserved. No part of this website may be reproduced without the expressed, documented, and written consent of ThirdGen.org's Administrators.

Emails & Contact Details