opti again??!
Thread Starter
11 Second Club
Joined: Oct 2002
Posts: 895
Likes: 0
From: Austin, TX
opti again??! well, my 396 LT1 is acting up again.
we had it running fine on Saturday, but revved it up hard one time under load and it backfired really hard at 5300 and the car shut off. Now it woln't start. No spark to the cylinders... Any ideas on a cause?
we had it running fine on Saturday, but revved it up hard one time under load and it backfired really hard at 5300 and the car shut off. Now it woln't start. No spark to the cylinders... Any ideas on a cause?
id say its the damn opti. EXACT same thing happened to me when mine went out. Revved it up to about 5k and POP, then it just slowly died and wouldnt restart. Man was i pissed. Sorry about your luck man, opti's are a curse!
Opti
Originally Posted by Aries
I think I'm going to do the delteq coil pack conversion to fix this. Damn, that opti only had 40 miles on it too!
Originally Posted by moehorsepower
Just remember the coil packs DO NOT eliminate the Opti completely, It still relys on the Hi and Lo resolution of the opti,A friend of mine went this route and still had failures due to the resolution failer of the opti. I had numerious problems with the opticrap and finally went to the dynaspark, Never had an issue since.............
Ed
Opti Mine was consistently shooting the pickup off the rotor through the opti like an arrow at 6500 RPM. I checked the pin length off the cam and it was good. I even pulled it out and put a little JB to make sure it was not walking in and out but still no luck. With the Dyna Spark everything has been ok so far..
Double check your coil if you have an ignition box. I still had spark but it was not enough for the opti.(would still shock the hell out of your friends)(probably the juice from the ignition box still making its way through) I wound up replacing the opti not knowing this and then still had the problem. Only to find out it was the coil. If you have a stock one sitting around test it in place of the other. 40 miles sounds fishy for the opti to be going out already, unless you got water in it from something.
I think your problem might be something like I had.
I think your problem might be something like I had.
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
10 Reasons the LS7 Is GM's Most Extreme Naturally Aspirated V8 Engine Ever
Verdad Gallardo Thread Starter
11 Second Club
Joined: Oct 2002
Posts: 895
Likes: 0
From: Austin, TX
well, the coil is brand new (40 miles along with the opti, and control module) the MSD was not hooked up when this happened.
I'm leaning towards a problem with the rotor. Ed might be right on this one, I didn't check it and tighten everything before bolting it on... I'm also going to check the cam dowel with a micrometer to be sure of the length.
I'm leaning towards a problem with the rotor. Ed might be right on this one, I didn't check it and tighten everything before bolting it on... I'm also going to check the cam dowel with a micrometer to be sure of the length.
TECH Regular
Joined: Aug 2004
Posts: 464
Likes: 0
Originally Posted by Aries
well, my 396 LT1 is acting up again.
we had it running fine on Saturday, but revved it up hard one time under load and it backfired really hard at 5300 and the car shut off. Now it woln't start. No spark to the cylinders... Any ideas on a cause?
we had it running fine on Saturday, but revved it up hard one time under load and it backfired really hard at 5300 and the car shut off. Now it woln't start. No spark to the cylinders... Any ideas on a cause?
thats what you get for trying to put a motor in a 240 that doesnt belong there...
sup chris..im just ******* with you...just following your threads to get you to hurry up and get your **** running so you can get spank by a real 240...see you around bud!!!
duy
Thread Starter
11 Second Club
Joined: Oct 2002
Posts: 895
Likes: 0
From: Austin, TX
ok, fixed it today. Car is running great again!
Bolts holding the rotor on inside the opti backed out (Thanks Ed Wright for the suggested problem) and the rotor cracked in half. New rotor, New Cap, and new wires just for good measure. It Lives!
And Duy, as soon as I get a new tune on this thing (tonight or tomarrow) I'll be game for running your "Real" 240.
Bolts holding the rotor on inside the opti backed out (Thanks Ed Wright for the suggested problem) and the rotor cracked in half. New rotor, New Cap, and new wires just for good measure. It Lives!
And Duy, as soon as I get a new tune on this thing (tonight or tomarrow) I'll be game for running your "Real" 240.
Originally Posted by Aries
ok, fixed it today. Car is running great again!
Bolts holding the rotor on inside the opti backed out (Thanks Ed Wright for the suggested problem) and the rotor cracked in half. New rotor, New Cap, and new wires just for good measure. It Lives!
And Duy, as soon as I get a new tune on this thing (tonight or tomarrow) I'll be game for running your "Real" 240.
Bolts holding the rotor on inside the opti backed out (Thanks Ed Wright for the suggested problem) and the rotor cracked in half. New rotor, New Cap, and new wires just for good measure. It Lives!
And Duy, as soon as I get a new tune on this thing (tonight or tomarrow) I'll be game for running your "Real" 240.
Take care, Ed
Originally Posted by Ed Wright
Glad you fixed it. I think ACDelco must have a four old girl installing those rotors. I always use a thread locker on the screws.
Take care, Ed
Take care, Ed
It seems like that. 
Originally Posted by blazin
I Have a new opti coming. What locktite did you use? Do you Just have to pull the cap off and the screws are visable?
Good luck, Ed