LT1 starting problem
LT1problem 
I was passing a car today, downshifted to third.
then the car freaking dies...well sputters then dies.
It will turn over and then will suptter and die, I have spark, the fuel pump works and I had gas, what could it be?
I thought optisparks gave some sort of warning before they went out?
Mine car just died out of the blue and its acting like its timing is off, could the icm be fried?
It better not be the opti...
Mine car just died out of the blue and its acting like its timing is off, could the icm be fried?
It better not be the opti...
yeah..my opti spark gave me advanced warning.
I backed out to goto work..it was running a lil choppy. Idle Smoothed out..sounded like it was running perfect! (thats when I realized something wasnt right). I made it forward about 2 feet back into my driveway and ended up pushing it the rest of the way. Just like that.
I backed out to goto work..it was running a lil choppy. Idle Smoothed out..sounded like it was running perfect! (thats when I realized something wasnt right). I made it forward about 2 feet back into my driveway and ended up pushing it the rest of the way. Just like that.
I got the code its throwing, its code P0100, Maf insufficent, but that wouldn't keep the car from running would It, If I disconnect it. It should run in speed ddensity mode...
wtf?!
P.S. thats the only code its throwing..
wtf?!
P.S. thats the only code its throwing..
Trending Topics
I dont know about this whole disconnected maf thing. If i inplug mine the car wont start,refuses to run. Sounds like you need to swap one out with someone and test it. Im not sure what that code means exactly, but I would try to swap a different maf in there.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
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
Joined: Nov 2001
Posts: 10,023
Likes: 6
From: LT1 land...the "409" of the 90s!
Yes if you lost the MAF by disconecting it she will go into MAP mode and run 
While you are at it see if the bellows pulled off the TB.
Back when I had a blower on the car I would blow a hose about once a week. I was running 14Psi. Just like you said yours did the car would die and I would have to coast to the side of the road. It would not restart untill found the hose that blew off and fix it.
Good luck!
While you are at it see if the bellows pulled off the TB.
Back when I had a blower on the car I would blow a hose about once a week. I was running 14Psi. Just like you said yours did the car would die and I would have to coast to the side of the road. It would not restart untill found the hose that blew off and fix it.
Good luck!
11 Second Club
Joined: Aug 2004
Posts: 21
Likes: 0
From: Fontana, CA
My opti gave very little warning. It misfired/backfired every once in a while, but then one day I floored it and it sounded as if my driveshaft exploded. It continued to crackle up until I took the key out. Then it would not restart. I had it towed to the shop (Don Lee in Rancho Cucamonga). I only threw a TPS and Fan code (no opti-anything). After changing the TPS and ICM with no help we figured it had to be the Opti. When they got it off it rattled like a toy. We took it apart and wow. 
The screws had backed completely out and come off the rotating arm. The plastic dowel pin on the arm had also broken off.
You can see that it was taking itself apart from the inside. We did not unscrew the rotating arm; it was off hanging on its own. Out of control.
The screws had backed completely out and come off the rotating arm. The plastic dowel pin on the arm had also broken off. You can see that it was taking itself apart from the inside. We did not unscrew the rotating arm; it was off hanging on its own. Out of control.
Originally Posted by a5150ward
My opti gave very little warning. It misfired/backfired every once in a while, but then one day I floored it and it sounded as if my driveshaft exploded. It continued to crackle up until I took the key out. Then it would not restart. I had it towed to the shop (Don Lee in Rancho Cucamonga). I only threw a TPS and Fan code (no opti-anything). After changing the TPS and ICM with no help we figured it had to be the Opti. When they got it off it rattled like a toy. We took it apart and wow. The screws had backed completely out and come off the rotating arm. The plastic dowel pin on the arm had also broken off.
You can see that it was taking itself apart from the inside. We did not unscrew the rotating arm; it was off hanging on its own. Out of control.
The screws had backed completely out and come off the rotating arm. The plastic dowel pin on the arm had also broken off. You can see that it was taking itself apart from the inside. We did not unscrew the rotating arm; it was off hanging on its own. Out of control.
