I think it's an ignition problem
Thread Starter
Registered User
Joined: Jan 2017
Posts: 3
Likes: 0
I think it's an ignition problem I rebuilt the motor and replaced all ignition parts 3,000 miles ago. Now when I start it, it will run for 30 seconds to a minute and shut off. Then it wont start again and I can't start it the rest of the day. Then, go out and start it the net day and it does the same thing. Please help if you can, I'm pulling my hair out trying to figure this out. 
TECH Veteran
Joined: Apr 2008
Posts: 4,985
Likes: 112
have you checked fuel pressure or scanned for any codes?
your description is brief and could be so many things....
You need to do some diagnostic checking first to narrow it down to either fuel or spark
.....a "guess" is Ignition Control Module....but just a guess from this side of the internet
best to do some diagnostic first with a code reader and fuel pressure gauge...especially when the issue occurs before blindly throwing parts at it
your description is brief and could be so many things....
You need to do some diagnostic checking first to narrow it down to either fuel or spark
.....a "guess" is Ignition Control Module....but just a guess from this side of the internet
best to do some diagnostic first with a code reader and fuel pressure gauge...especially when the issue occurs before blindly throwing parts at it
Thread Starter
Registered User
Joined: Jan 2017
Posts: 3
Likes: 0
Ignition Control Module was replaced yesterday. I put a meter on the injectors and they are pulsing. fuel pressure is good. When I rebuilt it 3000 miles ago, I replaced the fuel pump, regulator, opti, plugs, wires, coil and now the ICM. when I rebuilt it I also installed a hot cam kit, headers and had it fully tuned from PCM for less. I dont have a scanner, but I've tried to troubleshoot everything I can think of.
TECH Veteran
Joined: Apr 2008
Posts: 4,985
Likes: 112
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0
Brett Foote