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

DFI and ECM Discuss all aspects of DFI (Digital Fuel Injection), ECMs (Electronic Control Module), scanners, and diagnostic equipment. Fine tune your Third Gen computer system for top performance.

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 04-25-2009, 04:52 PM   #1
Senior Member
 
JTNKTZ's Avatar
 
Join Date: Aug 2008
Location: Winchester, VA
Posts: 636
Car: 1991 Camaro RS/1989 Vert RS
Engine: 355/350
Transmission: T-5/T-5
Axle/Gears: BW9bolt3.45posi/3.23 Posi

Classifieds Rating: (10)
Need ECM help

I have finally come to the conclusion that my ECM is fried. It turns my fuel pump on when it wants to. I tested the green trigger wire and it does not get 12v for 2 seconds (prime) when I turn the key. With that being said, it's got to be fried or something. So now I have the 1228746 ECM.

I am looking to buy a new one but I have a few questions. The car is a 5 speed, no airbags with VATS. If I still have the same prom can I buy any 1228746 ECM? Even if the ECM is an automatic, airbags and no VATS? Or do I need a exact replica of my car...

I do not understand what I can use and not use without getting codes and such.
__________________
1991 Camaro RS
1989 Camaro RS Convertible

JTNKTZ is offline vBGarage Page   Reply With Quote
Old 04-28-2009, 12:48 PM   #2
Supreme Member
 
JP86SS's Avatar
 
Join Date: Apr 2004
Location: Browns Town
Posts: 2,933
Car: 86 Monte SS (730,$8D,G3,AP,4K,S_V4)
Engine: 406 Hyd Roller
Transmission: 700R4 HomeBrew, 3.8K stall 3 diskLU
Axle/Gears: 3:73 Posi, 7.5 Soon to break

Classifieds Rating: (0)
Re: Need ECM help

Not sure what the "green" wire is so...
The ECM may provide ground or possibly the 12V output for the fuel pump relay. Relay might be coming on but not getting power at the contacts.
Confirm you have 12V at the FP relay. The ECM turns on the relay to run the pump.
There is also an oil pressure switch that will bypass the relay and provide the pump with power in case the relay was to fail. Cranking could take a bit longer because oil pressure has to develop before you would get fuel.
HTH
JP86SS is offline vBGarage Page   Reply With Quote
Old 04-28-2009, 12:48 PM
ThirdGen
1992 Camaro




Paid Advertisement


Reply

Go Back   Third Generation F-Body Message Boards > Tech Boards > DFI and ECM

Tags
1987, 50, automatic, buy, camaro, ecm
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 02:30 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