LT1-LT4 Modifications 1993-97 Gen II Small Block V8

New opti- New waterpump= No start.

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Old 08-10-2009, 05:06 PM
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Default New opti- New waterpump= No start.

My firebird overheated i the freeway. It was leaking water. Replaced the waerpump. It wasnt starting, I thought the opti-spark was trashed so I replaced it. But still doing the same thing. Any suggestions?
Old 08-10-2009, 05:22 PM
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What exactly is it doing? Does it crank? Stutter and stop? Make any unusual sounds?
Old 08-10-2009, 05:23 PM
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Any codes present before you replaced the opti?
Old 08-10-2009, 06:21 PM
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Before the opti-spark was removed. it would start but misfire alot. It would not stay on. I would have to press on the gas to stay on. Misfireing the whole time. Now the starter kicks, but after two seconds of kicking it almost soounds like its choking or loosing power. I didnt check for codes before the incident. No start. Thanks guys.
Old 08-10-2009, 06:27 PM
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did you replace it with a brand new opti, or a used one? stock? aftermarket?
Old 08-10-2009, 06:34 PM
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Check your rear end fluid level sensor!
Old 08-10-2009, 06:39 PM
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Originally Posted by 1badzee
Check your rear end fluid level sensor!
Wow...that is so random! lol. Experience? If so please share!
Old 08-10-2009, 06:42 PM
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Originally Posted by Z28Camaro30Ann
did you replace it with a brand new opti, or a used one? stock? aftermarket?
Its from Borg warner. Tried to look for one from thepartslady but it looks like she no longer carries them. So I had to buy one from schucks.
Old 08-10-2009, 06:43 PM
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Originally Posted by 1badzee
Check your rear end fluid level sensor!

WOW. Please explain.
Old 08-10-2009, 06:49 PM
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Borg Warner?? I didnt know they MADE opti's lol. Are you sure you plugged everything back in??
Old 08-10-2009, 06:53 PM
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How's your fuel pressure?
Old 08-10-2009, 06:58 PM
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I have to check that. I just read in another post that a guy urned his opti 180 degrees and that took care of it. What does he mean by that?
Old 08-10-2009, 07:33 PM
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OP, what year car???

Originally Posted by 1badzee
Check your rear end fluid level sensor!


Originally Posted by CharlieSS
Its from Borg warner. Tried to look for one from thepartslady but it looks like she no longer carries them. So I had to buy one from schucks.
'95-'97
http://cgi.ebay.com/ebaymotors/95-96...Q5fAccessories

'92-'94
http://cgi.ebay.com/ebaymotors/92-93...Q5fAccessories

Originally Posted by CharlieSS
I have to check that. I just read in another post that a guy urned his opti 180 degrees and that took care of it. What does he mean by that?
http://shbox.com/1/93-94_opti.jpg

http://shbox.com/1/opti_back.jpg
Old 08-10-2009, 08:39 PM
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My lt1 is a 1993. If the teeth are nor perfextly aligned would it cause it to misfire?
Old 08-10-2009, 08:49 PM
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if you didnt line it up right, it would crank and sputter and die. It puts the timing all out of wack.

Edit: Sorry didnt look at the year. But its the same principle except the alignment of that little notch instead of the dowel :p

Last edited by jbridwelltransam; 08-10-2009 at 08:50 PM. Reason: confused
Old 08-10-2009, 10:38 PM
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Originally Posted by CharlieSS
My lt1 is a 1993. If the teeth are nor perfextly aligned would it cause it to misfire?
If they aren't really aligned, the opti would not have bolted down to the timing cover completely flush because of the keyway in the cam sprocket. It has to match with the notch/key in the gear on the back of the opti. Did it bolt down flush?
Old 08-11-2009, 12:12 AM
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opti's not on right imo

people can and have forced them on wrong
Old 08-11-2009, 02:55 PM
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I wasnt there for the opti install. My buddy did that. Im pretty sure thats the problem. Im going to take it off right now. Along with new sparkplugs and MSD wires. See what that does.
Old 08-16-2009, 11:38 AM
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All fixed and running good. Thanks for all your input guys. Really appreciated.
Old 08-16-2009, 11:44 AM
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What did it end up being???



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