Need Computer Code Help
Thread Starter
Instructor
Joined: Dec 2005
Posts: 108
Likes: 0
From: Gainesville Florida
Need Computer Code Help
My C4 died as I was leaving my driveway. It just stopped. It appears to be ignition related. The car will turn okay, but the engine will not start. The computer codes are C41, H41, H62, H72. Does anyone have any background this failure?
Le Mans Master
Joined: Jul 2007
Posts: 5,043
Likes: 8
From: Tampa Florida
I'm not familar with the codes but mine died about a week ago.... it just cranks...see post: 89 "vette won't start." Hope its not the same deal as what I got! Let me know what you find as the problem.
Racer
Joined: May 2005
Posts: 472
Likes: 1
From: looking for my insanity state of confusion
Havn't been able to find anything for code 72, but 62 is high oil temp, and the 41 both current and history ( the C and the H in front of the numbers) show failure in the electronic spark timing. The first thing to check are the connections on the electronic spark control to make sure they are clean, then test the module. I've had the same problem a while back, but it just ended up being a short in the wire for coolant temp on the front of the engine. Btw the ignition components if it's an lt1, are on the passenger side front cylinder head. Hope some of this helps.
Thread Starter
Instructor
Joined: Dec 2005
Posts: 108
Likes: 0
From: Gainesville Florida
Yeah that helps, thanks. A year ago I had a similar problem, and after replacing the opti, it turned out to be the coil driver. I have a feeling a lost the coil driver again.
Melting Slicks
Joined: Oct 2004
Posts: 2,510
Likes: 4
From: Austin Texas
Thread Starter
Instructor
Joined: Dec 2005
Posts: 108
Likes: 0
From: Gainesville Florida
No, the coil driver is a small circuit attached to the same mounting plate as the ignition coil. It is used to generate a high voltage DC pulse. The good news it's only a $15 part.
Melting Slicks
Joined: Oct 2004
Posts: 2,510
Likes: 4
From: Austin Texas
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
2027 Corvette vs The World: Every C8 vs Its Closest Competitor
Joe Kucinski
10 Most Common Corvette Problems of the Last 20 Years!
Joe Kucinski
5 MOST and 5 LEAST Popular Corvette Model Years in History!
Joe Kucinski
2027 Corvette Buyer's Guide: Everything You Need to Know!
Joe Kucinski
10 Things C8 Corvette Owners Hate (But Won't Tell You)
Joe Kucinski
10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!
Brett Foote