South Central Region Board for the states of Texas, Oklahoma, and Louisana.

Need ECM, where to look

Thread Tools
 
Search this Thread
 
Old May 23, 2004 | 08:25 PM
  #1  
StevenK's Avatar
Thread Starter
Supreme Member
20 Year Member
Liked
Loved
Community Favorite
iTrader: (1)
 
Joined: Feb 2003
Posts: 1,508
Likes: 63
From: Austin, Tx
Car: 91 Z28
Engine: LS1
Transmission: T-56
Axle/Gears: 3.73 Hawks 8.8
Need ECM, where to look

Hey guys, I think I need a ECM because the car is acting up....

....where should I look to get a new one?

I've already checked GM Parts Direct's website and I don't think they sell them.

Thanks in advance,

Steven
Reply
Old May 23, 2004 | 09:34 PM
  #2  
Scott_92RS's Avatar
Supreme Member
 
Joined: Jul 1999
Posts: 1,817
Likes: 1
From: Plano, TX
Car: 1992 RS
Engine: 406 Stealth Ram
Transmission: 700R4
eBay has em all the time. What makes you think its the ECM?
Reply
Old May 23, 2004 | 11:15 PM
  #3  
Rock90rs's Avatar
Senior Member
iTrader: (3)
 
Joined: Jul 1999
Posts: 645
Likes: 2
From: Houston,TX
Car: 92 RS/90' vette
Engine: Heads/cam/miniram/blah blah blah..
Transmission: T5/700!
Axle/Gears: 3.08
Just go to a pick your parts place.
The 7730 ECM was used in tons of GM cars. Corsica, Beretta, cutlass, etc. Basically anything with port fuel injection from 90+.
All you have to do is swap in your f-body prom probably cost you $20

Last edited by Rock90rs; May 24, 2004 at 01:20 PM.
Reply
Old May 23, 2004 | 11:34 PM
  #4  
tamatt27's Avatar
Supreme Member
 
Joined: Jun 2002
Posts: 1,571
Likes: 0
From: ATX
Car: Kitt
Engine: Classified
Transmission: T56
Axle/Gears: Moser/4:11
Looks like both of our cars are on the fritz lately dude. Sorry to hear about it tho. I've got an LT1 PCM, but I don't think that'll be much help Good luck anyway!
Reply
Old May 24, 2004 | 08:57 AM
  #5  
DJP87Z28's Avatar
Supreme Member
 
Joined: Mar 2003
Posts: 4,771
Likes: 15
From: Florida
Car: 1987 Black IROC-Z (SOLD)
I bought one from gmpartsdirect last year. At a good price also.
Reply
Old May 24, 2004 | 11:40 AM
  #6  
Jekyll & Hyde's Avatar
Supreme Member
 
Joined: Sep 2002
Posts: 1,500
Likes: 0
From: Dallas/Fort-Worth
Car: 1988 Camaro IROC-Z
Engine: 350 TPI (L98)
Transmission: T56
Axle/Gears: 9-bolt 3.45
Re: Need ECM, where to look

Originally posted by StevenK
Hey guys, I think I need a ECM because the car is acting up....

....where should I look to get a new one?

I've already checked GM Parts Direct's website and I don't think they sell them.

Thanks in advance,

Steven
I couldn't find one for my car either, so I went through the dealer. I would only do this if I could not find it anywhere else.

At the time, they charged $198, but had a core charge for the old one.


What is the car doing? It's not often that the computer will go out.

Mine turned out to be that the alternator wasn't putting out enough from the heat and couldn't keep up. This caused poor driveability and poor idle. It will cause a slight stumble or stall off the line while normal driving, once the alternator could spin enough to make the amps (lost from the heat), it would pick up all power. Just and idea man.
Reply
Old May 24, 2004 | 02:40 PM
  #7  
StevenK's Avatar
Thread Starter
Supreme Member
20 Year Member
Liked
Loved
Community Favorite
iTrader: (1)
 
Joined: Feb 2003
Posts: 1,508
Likes: 63
From: Austin, Tx
Car: 91 Z28
Engine: LS1
Transmission: T-56
Axle/Gears: 3.73 Hawks 8.8
Yeah, I should have explained the problem in the initial post....I'm almost 100% sure its the ECM though.

I found one at Autozone for 68 bucks, so I'm gonna go get one a little later.

Okay, so the cars been sitting all night, I hop in it to go to a remote location to do some filming, burnouts, ect.....

I get there, and find a nice spot to take a few pictures, so I turn off the car and take the pictures. I get back in, and turn the key, it turns over, and sputters, so I hold down the gas a little (not uncommon for my car to do this).....but the problem was the check engine light stayed on. So now im thinking, crap, stupid car and I pull out my laptop, after its all pluged in and set to scan the ALDL, I turn the key forward to look for codes, It gives me about 8 of them, including ECM/PROM errors. So after cursing at the car for about an hour I drive it home in limp-home mode and burn a new chip. After the car sat for about an hour at my apartment while i was messing with the chip, it stated up with no check engine lights. I was like 'cool, it was just the chip' so I head back out to do the filming again, but on the way I had to stop for gas. After fueling up i start him up again, and *(@#$*(# check engine light again. This time i try to scan it and get no ALDL connection. So, no ECM communication with laptop, no speedo, no IAC control, no timing control, horrible air/fuel mix.......i'm 99% sure its the ECM.

any ideas/comments?
Reply
Old May 24, 2004 | 07:46 PM
  #8  
StevenK's Avatar
Thread Starter
Supreme Member
20 Year Member
Liked
Loved
Community Favorite
iTrader: (1)
 
Joined: Feb 2003
Posts: 1,508
Likes: 63
From: Austin, Tx
Car: 91 Z28
Engine: LS1
Transmission: T-56
Axle/Gears: 3.73 Hawks 8.8
well, i just put the ECM from autozone in on my lunch break, and now the car wont start at all

I'm gonna try and pull any codes it might have using the paperclip on my next break and see if that will tell me anything.....


....im about to just burn the #$%#$^ to the ground and collect insurance.

a mountain bike is starting to look pretty apealing at this point
Reply
Old May 24, 2004 | 08:31 PM
  #9  
DJP87Z28's Avatar
Supreme Member
 
Joined: Mar 2003
Posts: 4,771
Likes: 15
From: Florida
Car: 1987 Black IROC-Z (SOLD)
Did you put the chip in it ?????
Reply
Old May 24, 2004 | 09:00 PM
  #10  
StevenK's Avatar
Thread Starter
Supreme Member
20 Year Member
Liked
Loved
Community Favorite
iTrader: (1)
 
Joined: Feb 2003
Posts: 1,508
Likes: 63
From: Austin, Tx
Car: 91 Z28
Engine: LS1
Transmission: T-56
Axle/Gears: 3.73 Hawks 8.8
yes, i've put in my custom chip and moates adapter, and also just the stock memcal, no difference.

I just went out and jumpered a&b, all I'm getting is a 12 over and over......

I tried to start it and its almost like there is no spark......just cranks with no reaction from the motor.

im out of ideas, I'll probably get it towed to the shop tomorow morning.

anyone want a z28 cheap?
Reply
Old May 24, 2004 | 11:41 PM
  #11  
StevenK's Avatar
Thread Starter
Supreme Member
20 Year Member
Liked
Loved
Community Favorite
iTrader: (1)
 
Joined: Feb 2003
Posts: 1,508
Likes: 63
From: Austin, Tx
Car: 91 Z28
Engine: LS1
Transmission: T-56
Axle/Gears: 3.73 Hawks 8.8
got another ECM and now its back to life!

weee!:lala:

Last edited by StevenK; May 25, 2004 at 02:21 AM.
Reply
Old May 25, 2004 | 08:25 AM
  #12  
Jekyll & Hyde's Avatar
Supreme Member
 
Joined: Sep 2002
Posts: 1,500
Likes: 0
From: Dallas/Fort-Worth
Car: 1988 Camaro IROC-Z
Engine: 350 TPI (L98)
Transmission: T56
Axle/Gears: 9-bolt 3.45
Sweet.
Reply
Old May 25, 2004 | 09:06 PM
  #13  
Larry Dunlap's Avatar
Supreme Member
 
Joined: Jan 2002
Posts: 1,705
Likes: 0
From: Katy, Texas
Car: '91 Formula
Engine: 350
Transmission: TH350 built
Axle/Gears: 3.73
yeh <i got one of those remanufaactured ECMs at Autozonnne or <<<o reeily or somenthing, for about that amount of bucks and it is still working fine. >Lets face it, the ECM is not exactly a high perfroannce part. Sorry about the mistakes im on a rental comuter and the keyboard only about works one hallllf.
Reply
Old May 25, 2004 | 09:50 PM
  #14  
1bad91Z's Avatar
Supreme Member
iTrader: (1)
 
Joined: Jul 2001
Posts: 4,627
Likes: 5
From: Houston Area
Car: Faster
Engine: Than
Transmission: You!
Told ya it was the ECM.
Reply
Old May 25, 2004 | 10:51 PM
  #15  
StevenK's Avatar
Thread Starter
Supreme Member
20 Year Member
Liked
Loved
Community Favorite
iTrader: (1)
 
Joined: Feb 2003
Posts: 1,508
Likes: 63
From: Austin, Tx
Car: 91 Z28
Engine: LS1
Transmission: T-56
Axle/Gears: 3.73 Hawks 8.8
Originally posted by 1bad91Z
Told ya it was the ECM.
Yeah, thanks for giving me some more trouble shooting ideas to help determine if anything else was at fault....you rock!:lala:

actually, everyone in the S-C regional board ROX! hehehe :hail:
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
InfernalVortex
Electronics
10
Apr 20, 2021 11:31 AM
Falcon50
DFI and ECM
81
Aug 22, 2020 03:26 PM
thunder57
LTX and LSX
1
Nov 7, 2015 02:28 PM
Jlanz55
TPI
2
Sep 29, 2015 08:55 AM
efiguy
Engine/Drivetrain/Suspension Parts for Sale
0
Sep 27, 2015 01:30 PM




All times are GMT -5. The time now is 12:01 PM.