C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Ignition Control Module Issue

Thread Tools
 
Search this Thread
 
Old Jun 13, 2007 | 08:34 PM
  #1  
mrrilla's Avatar
mrrilla
Thread Starter
8th Gear
 
Joined: Sep 2006
Posts: 8
Likes: 0
Default Ignition Control Module Issue

I had a hard start condition on my TPI and my noid would not flash during cranking. The motor starts up with a small shot of ether though. I replaced my ignition control module and that worked. The motor started right up on its own and everything was fine. After a couple of starts, the issue came back. The ICM was bad.

What could cause the ICM to go bad? I am not sure how it works but could it be getting feedback from something else and "frying" it? If the ICM is bad, would the motor still run like it should? I followed my flow charts and it always leads to a bad ICM or connection.

Please help!
Reply
Old Jun 19, 2007 | 04:31 PM
  #2  
SunCr's Avatar
SunCr
Le Mans Master
10 Year Member
 
Joined: Dec 2000
Posts: 7,839
Likes: 22
From: San Diego, Ca
Default

Generally heat - but hard to imagine it was fryed again with only a couple of starts. Some of the Discount Chains use to test the Module and if there's one close by that can do that for you, you might want to take the time to be sure that it's bad. Otherwise, I'd suspect the wiring is frayed and grounding out somewhere - probably on the distributor body - or it's got a bad connection somewhere.
Reply




All times are GMT -4. The time now is 08:45 PM.

story-0
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-1
2027 Corvette vs The World: Every Model vs Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-20 17:58:41


VIEW MORE
story-2
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE
story-3
5 MOST and 5 LEAST Popular Corvette Model Years in History!

Slideshow: 5 most and least popular Corvette model years.

By Joe Kucinski | 2026-04-08 13:25:01


VIEW MORE
story-4
2027 Corvette Buyer's Guide: Everything You Need to Know!

Slideshow: 2027 Corvette buyer's guide

By Joe Kucinski | 2026-04-17 16:41:08


VIEW MORE
story-5
10 Things C8 Corvette Owners Hate (But Won't Tell You)

Slideshow: 10 things C8 Corvette owners hate, but won't tell you.

By Joe Kucinski | 2026-04-01 18:36:07


VIEW MORE
story-6
10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!

Slideshow: Should you add one of these incredible Corvettes to your garage?

By Brett Foote | 2026-04-01 18:14:05


VIEW MORE
story-7
Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)

Slideshow: Every Corvette Grand Sport explained

By Joe Kucinski | 2026-03-26 07:13:44


VIEW MORE
story-8
Grand Sport & Grand Sport X Launch Alongside All-New 535hp LS6 V8!

Slideshow: Breaking down the 2027 Grand Sport, Grand Sport X, Stingray, and LS6 V8.

By Michael S. Palmer | 2026-03-26 13:48:45


VIEW MORE
story-9
5 Reasons Bad Drivers Crash & 5 Ways to Avoid a Costly Mistake!

Slideshow: 5 reasons bad drivers crash sports cars & 5 ways to avoid a costly shame!

By Joe Kucinski | 2026-03-25 16:32:55


VIEW MORE