Third Generation F-Body Message Boards

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.

What gives?

   
Old Dec 6, 2017 | 04:22 PM
Share
  #1  
James Sutton's Avatar
James Sutton
Thread Starter
Member
iTrader: (2)
 
Joined: Oct 2010
Posts: 199
Likes: 4
From: Des Moines, Iowa
Car: 1991 Camaro RS yellow
Engine: was '91 V6, now '89 5.7/355 TPI
Transmission: 4 speed automatic
Axle/Gears: Moser 3.73 with zexel posi
What gives?
I recently changed my ECM. Before I did, my instrument cluster worked fine; after I did, engine ran hot, and tachometer & temp gauge read high. Any ideas?
Reply
0
Old Dec 6, 2017 | 06:13 PM
Share
  #2  
Drew's Avatar
Drew
Supreme Member
25 Year Member
Liked
Loved
Community Favorite
iTrader: (58)
 
Joined: Jul 1999
Posts: 20,310
Likes: 1,068
From: Salina, KS
Re: What gives?
Considering the ECM doesn't control the gauges, it's either not related or not an instrumentation issue.
Reply
0
Old Dec 6, 2017 | 07:56 PM
Share
  #3  
RBob's Avatar
RBob
Moderator
iTrader: (1)
 
Joined: Mar 2002
Posts: 18,432
Likes: 234
From: Chasing Electrons
Car: check
Engine: check
Transmission: check
Re: What gives?
Does the fan(s) run OK? The '91 V6 ECM and the '91 TPI ECM both control the engine cooling fan.

RBob.
Reply
0
Old Dec 7, 2017 | 12:48 AM
Share
  #4  
James Sutton's Avatar
James Sutton
Thread Starter
Member
iTrader: (2)
 
Joined: Oct 2010
Posts: 199
Likes: 4
From: Des Moines, Iowa
Car: 1991 Camaro RS yellow
Engine: was '91 V6, now '89 5.7/355 TPI
Transmission: 4 speed automatic
Axle/Gears: Moser 3.73 with zexel posi
Re: What gives?
Opened hood with engine hot; fan not working or working intermittently. What's the fix?
Reply
0
Old Dec 7, 2017 | 06:43 AM
Share
  #5  
RBob's Avatar
RBob
Moderator
iTrader: (1)
 
Joined: Mar 2002
Posts: 18,432
Likes: 234
From: Chasing Electrons
Car: check
Engine: check
Transmission: check
Re: What gives?
Another ECM.

RBob.
Reply
0
Old Dec 7, 2017 | 09:35 PM
Share
  #6  
MrPackstin's Avatar
MrPackstin
Member
10 Year Member
Liked
Loved
iTrader: (9)
 
Joined: Dec 2012
Posts: 407
Likes: 10
From: Clarksville,TN
Car: 1989 GTA
Engine: 5.7 w/Paxton
Transmission: 700R4
Axle/Gears: 3.27
Re: What gives?
Wonder if the terminals on the new cluster are all clean, especially the grounds.
Reply
0
Old Dec 8, 2017 | 12:13 AM
Share
  #7  
James Sutton's Avatar
James Sutton
Thread Starter
Member
iTrader: (2)
 
Joined: Oct 2010
Posts: 199
Likes: 4
From: Des Moines, Iowa
Car: 1991 Camaro RS yellow
Engine: was '91 V6, now '89 5.7/355 TPI
Transmission: 4 speed automatic
Axle/Gears: Moser 3.73 with zexel posi
Re: What gives?
Originally Posted by MrPackstin
Wonder if the terminals on the new cluster are all clean, especially the grounds.
Cluster was working fine, before ECM was changed.
Reply
0
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
What gives? Advice please!
RICHRAD
Electronics
3
Jul 16, 2001 05:50 PM
What size piping gives the best HP
Twilightoptics
Exhaust
3
Jul 10, 2001 08:56 PM
What gives? Need strut help.
I ROCK
Tech / General Engine
4
Feb 20, 2001 11:37 AM
TPS v's 0.00 ???????what gives !!!!!
quickL98
Tech / General Engine
1
Oct 24, 2000 09:55 PM
White smoke upon start-up. What gives???
1BadGTA
Tech / General Engine
8
Sep 24, 2000 06:57 PM
Back to Subforum
DFI and ECM
View Next Unread
Chip for Stock TPI Motor - Who is Best?


Thread Tools
Search this Thread
Search this Thread:

Advanced Search

Advanced Search

All times are GMT -5. The time now is 05:44 PM.