Reduced engine power (shocker)
Thread Starter
Heel & Toe
Joined: Nov 2022
Posts: 23
Likes: 1
I don't know if I'm doing this right. I can't figure out the correct way to reply to this post. Anyway, I had the same issues with my c5. I installed a "LMC5" and it cured every issue except for the TC/Traction Control. That was 9 years ago. Car still runs fine today. Google or ebay LMC5/Line Module C5 Corvette. It cures the communication between the PCM and BCM. Takes 20 minutes to install. Good luck.
Thread Starter
Heel & Toe
Joined: Nov 2022
Posts: 23
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Cruising
Joined: Aug 2014
Posts: 14
Likes: 2
From: 327 Del Sur St. Vallejo, California
Lmc5
VooDoo, you are mistaken sir. I know from first hand experience that LMC5 regains communication between PCM and BCM.
LMC5 fixes steering column lock issues and restores communication between PCM and BCM. This is what it was designed to do. The Tech ll will tell you loss of communication between PCM & BCM causing power loss and steering column lock issues. All that goes away once LMC5 is installed. If he still has issues, I would replace components at PCM located behind right (passenger side) wheel well. Back to LMC5, it takes 19 minutes to install. It is a definite need for 1997 - 2000 Corvettes.
LMC5 fixes steering column lock issues and restores communication between PCM and BCM. This is what it was designed to do. The Tech ll will tell you loss of communication between PCM & BCM causing power loss and steering column lock issues. All that goes away once LMC5 is installed. If he still has issues, I would replace components at PCM located behind right (passenger side) wheel well. Back to LMC5, it takes 19 minutes to install. It is a definite need for 1997 - 2000 Corvettes.
Thread Starter
Heel & Toe
Joined: Nov 2022
Posts: 23
Likes: 1
Update. It’s been in the shop since November. They finally found a Tac module for it and that didn’t fix it.
They checked the harness and found that there’s something wrong with the ecm. +$750 to the bill. Said if that didn’t work since there wasn’t fuel pressure it’d need a fuel pump +$2,200 🙄
They checked the harness and found that there’s something wrong with the ecm. +$750 to the bill. Said if that didn’t work since there wasn’t fuel pressure it’d need a fuel pump +$2,200 🙄
Racer
Joined: Oct 2021
Posts: 389
Likes: 76
From: Chicago
Update. It’s been in the shop since November. They finally found a Tac module for it and that didn’t fix it.
They checked the harness and found that there’s something wrong with the ecm. +$750 to the bill. Said if that didn’t work since there wasn’t fuel pressure it’d need a fuel pump +$2,200 🙄
They checked the harness and found that there’s something wrong with the ecm. +$750 to the bill. Said if that didn’t work since there wasn’t fuel pressure it’d need a fuel pump +$2,200 🙄
Last edited by 666lisa; Apr 15, 2023 at 12:16 PM.
Race Director
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Thread Starter
Heel & Toe
Joined: Nov 2022
Posts: 23
Likes: 1
Update. It’s been in the shop since November. They finally found a Tac module for it and that didn’t fix it.
They checked the harness and found that there’s something wrong with the ecm. +$750 to the bill. Said if that didn’t work since there wasn’t fuel pressure it’d need a fuel pump +$2,200 🙄
They checked the harness and found that there’s something wrong with the ecm. +$750 to the bill. Said if that didn’t work since there wasn’t fuel pressure it’d need a fuel pump +$2,200 🙄
it was the PCM. The squirrel nest definitely caused moisture to get inside of it and it shorted out somewhere. New pcm fixed it right up
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
As Les55 stated, you do have column lock DTCs and that should be fixed with before it bites you. Get an LMC5 if it doesn't already have a column lock bypass installed.
Thread Starter
Heel & Toe
Joined: Nov 2022
Posts: 23
Likes: 1
As Les55 stated, you do have column lock DTCs and that should be fixed with before it bites you. Get an LMC5 if it doesn't already have a column lock bypass installed.