Replace opti no restart.
#1
Replace opti no restart.
I replaced the opti spark, coil. Icm and MAF, Will start ride drive but when parked will not restart when warm. Test drive was around the block so no real heat issue. After cooling off and a regimen of hard starts it will finally fire. This is a 94 Z28 LT1. All help appreciated!
#4
Re: Replace opti no restart.
Did you have this problem BEFORE you did the replacements listed above?
What brand Opti did you install?
Describe what exactly the starter and the engine do during what you describe as "a regimen of hard starts". Is there any indication that the engine may be flooding? Is there any indication of inadequate fuel flow?
What brand Opti did you install?
Describe what exactly the starter and the engine do during what you describe as "a regimen of hard starts". Is there any indication that the engine may be flooding? Is there any indication of inadequate fuel flow?
#6
Re: Replace opti no restart.
Been 95 degrees so for now we are trying to get the program and cable to
Injuneer's sticky to diagnose the prob. thanks for all the input.
The first prob was no spark and is what has lead to this point.
Injuneer's sticky to diagnose the prob. thanks for all the input.
The first prob was no spark and is what has lead to this point.
#8
Re: Replace opti no restart.
No. If you wanted to clear them pull the PCM BAT fuse for 30 seconds. That way you will know if they come back. Won't keep it from starting if you don't.
#9
Re: Replace opti no restart.
I noticed an attempted theft of battery before this all became an issue. Seems the thief got scared, I rem going to the big box outlet and upon returning to my car it would not start!
The negative cable was loose like wobble less than hand tight and had to re-tighten before the car would start.. Would the arcing of the neg cable in transit cause harm to the Electrical sys? It did restart and make it to the drive it now so earnestly protects 24/7. For the question of why was the car not locked to prevent theft> It's a Vert you wanna Rambo Knife slot or just what they can steal? You keep nothing in the interior of a Vert!
The negative cable was loose like wobble less than hand tight and had to re-tighten before the car would start.. Would the arcing of the neg cable in transit cause harm to the Electrical sys? It did restart and make it to the drive it now so earnestly protects 24/7. For the question of why was the car not locked to prevent theft> It's a Vert you wanna Rambo Knife slot or just what they can steal? You keep nothing in the interior of a Vert!
#10
Re: Replace opti no restart.
I just went threw this exact same thing with my 94 z28 lt1.I had to put 2 optis on my car.The first one I bought was bad so I had to buy a second one.Do you have a way to check codes.Look for code 16,thats the opti.But that was my trouble with this problem.I did the same thing.ECM,coil,opti.Then a second opti.
#11
Re: Replace opti no restart.
Did you have this problem BEFORE you did the replacements listed above?
***** What brand Opti did you install? *****
***** Describe what exactly the starter and the engine do during what you describe as "a regimen of hard starts". *****
***** Is there any indication that the engine may be flooding?
***** Is there any indication of inadequate fuel flow? *****
***** What brand Opti did you install? *****
***** Describe what exactly the starter and the engine do during what you describe as "a regimen of hard starts". *****
***** Is there any indication that the engine may be flooding?
***** Is there any indication of inadequate fuel flow? *****
#12
Re: Replace opti no restart.
I appreciate the responses that have been made on this thread That said I have not heard from my Mech since before the fourth. Brand names were not discussed prior to that. So I have no other info to share other than he had the scan tools to show no spark! Last communication was a new scanner was to be purchased instead of the Cable mentioned in the OB1 thread. I have been under the weather for 3 mons and would delve into this my self which may have to happen. Limited income means limited resources. So as you can see it's taxi for now! Thanks again to all that have responded. I will from refraining to post until it rides and drives!
#13
Re: Replace opti no restart.
Ok here it is hot off the press! I had waited until he returned to start the Z as it is his project! He put the key in, turned it and it started. He had purchased a new scanner plugged it in and no codes! After 20 starts and around the block several times he returned and it still no codes, rides and drives! The issue seems to be he used to much sea foam or start assist fluid down the throttle body when initial start was tried! Hopefully it's done deal and can move on to other issues with this fine automobile that was a piece crap in the recent past! . Just teasing I wouldn't trade it for anything! Thanks to all those that took interest in the Thread and offered advice!
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