Victory, I hope
Thread Starter
Intermediate
Joined: Apr 2025
Posts: 25
Likes: 4
From: East Tennessee
Victory, I hope
1992 Corvette which kept producing the following codes Module 1 (CCM) H41, H54, and ---, Module 4 (ECM) ERR, Module 9 (ABS/ASR) H72 after the car was driven for a few miles and sat a bit. Chased grounds and other stuff, until the ECM was all that was left. Sent the ECM to SIA, they sent it back as unrepairable and actually worse after they removed some of the clear stuff. Anyway, bit the bullet and bought a rebuilt one from Flashmaster, all problems seemed to have gone away after 2 drives that before would give codes.
Here's the question, do you think it's worthwhile opening the hood when I shut it down to prevent heat soaking the rebuilt ECM?? Wonder if there might be a mod to add cooling to the ECM?
Here's the question, do you think it's worthwhile opening the hood when I shut it down to prevent heat soaking the rebuilt ECM?? Wonder if there might be a mod to add cooling to the ECM?
Pro
Joined: Sep 2024
Posts: 526
Likes: 114
1992 Corvette which kept producing the following codes Module 1 (CCM) H41, H54, and ---, Module 4 (ECM) ERR, Module 9 (ABS/ASR) H72 after the car was driven for a few miles and sat a bit. Chased grounds and other stuff, until the ECM was all that was left. Sent the ECM to SIA, they sent it back as unrepairable and actually worse after they removed some of the clear stuff. Anyway, bit the bullet and bought a rebuilt one from Flashmaster, all problems seemed to have gone away after 2 drives that before would give codes.
Here's the question, do you think it's worthwhile opening the hood when I shut it down to prevent heat soaking the rebuilt ECM?? Wonder if there might be a mod to add cooling to the ECM?
Here's the question, do you think it's worthwhile opening the hood when I shut it down to prevent heat soaking the rebuilt ECM?? Wonder if there might be a mod to add cooling to the ECM?
You could find one of those fancy 12v fans that plug into a cigarette socket, cut the wire up and wire it to a switch to blow over the top of the ECM. You might be able to tie it into a thermoswitch where it runs until a certain temp is achieved. Another thing you could do is get a bunch of computer style aluminum heatsinks and use a thermal paste/adhesive to attach it to the top cover.
