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

Electronics Need help wiring something up? Thinking of adding an electrical component to your car? Need help troubleshooting that wiring glitch?

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 01-26-2010, 12:19 PM   #1
Junior Member
 
Join Date: Jan 2010
Posts: 3

Classifieds Rating: (0)
1991 firebird. 3.1 L

Hey guys i have recently purchased a 91 firebird. it ran fine for the first couple weeks and then it started sputtering when idling and then one day i was in traffic and it got really hot and now it won't start back up. i've changed all the sensors relating to the error code 23 its giving me with no luck. and i took the fuel rail apart and found out that the injectors aren't firing. I'm thinking its a computer problem but not sure. anyone have a similar problem that they might know why its doin it. i'm thinking its either the computer or the harness but not sure.
lance1126 is offline vBGarage Page   Reply With Quote
Old 01-26-2010, 12:43 PM   #2
Supreme Member
 
NINÅ's Avatar
 
Join Date: Jan 2006
Location: Mooresville, NC
Posts: 2,080
Car: LOWERED ♦ CRIMSON METALFLAKE
Engine: ► 400 KUBES ◄
Transmission: 765R4
Axle/Gears: EATON POSI 4.56

Classifieds Rating: (0)
Injection Rejection

If you’re getting spark disconnect one injector and connect a test light to the harness connector terminal.

Repeat procedure with the other bank.

Did both banks blink the test light?


Happy Racing!


If People Drove Any Slower They’d Be Going Backwards

When you see fog or “running” lights on in good weather beware. Low performance driver ahead.

How bout those nitwits too scared to drive without headlights in the daytime, and the nitwits that need headlights for a little rain

.
.

NINÅ is offline vBGarage Page   Reply With Quote
Old 01-26-2010, 03:40 PM   #3
Junior Member
 
Join Date: Jan 2010
Posts: 3

Classifieds Rating: (0)
Re: 1991 firebird. 3.1 L

thanks i'll check it out when i get back home in a few weeks. i did use the test light to see if the sensors were working and they did so thats why i thought it was the computer. from what i understand the wiring harness for the sensors is the same harness that controls the injectors thats why i think its the computer
lance1126 is offline vBGarage Page   Reply With Quote
Old 01-30-2010, 12:34 PM   #4
Supreme Member
 
Maverick H1L's Avatar
 
Join Date: Aug 2003
Location: LeRoy, NY
Posts: 5,575
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: 1991 firebird. 3.1 L

Repeat the test on the other injector terminals with a test light connected to battery positive. Crank the engine, and note whether the test light blinks. If the test light stays off during this, connect to a different terminal, as you need to find out whether the ECM is grounding the injectors, not whether the ignition source is reaching them.
__________________
Dan V.
Project Raven is on hold... She's a body shell with a rather large collection of parts. 1987 Pontiac Firebird, T-top, 1991 VIN T engine, getting MegaSquirted. 85 T-5 5-Speed manual trans. Hybrid 3100 V6 swap nearly complete, too much body work to do first . Restomod in progress. So many parts to replace, so little money .
Maverick H1L is offline vBGarage Page   Reply With Quote
Old 01-30-2010, 12:34 PM
ThirdGen
1992 Camaro




Paid Advertisement


Reply

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

Tags
1991, 1992, 31, 31l, 91, 92, basic, code, computer, ecm, error, firebird, guide, info, problems, repeating, start, troubleshooting
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 09:59 AM.


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