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

opti problem doesnt make sense

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Old Jul 18, 2009 | 04:48 PM
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From: Haslet, TX (north Fort Worth)
Default opti problem doesnt make sense

some of you may have seen my threads begging for help on my idle issue. i tried everything short of replacing the opti and in one of those frustrating moments of just staring at the engine..i noticed the opti vacuum lines werent hooked up.(guess we never hooked them up when installing the opti) In my previous posts, i noted that i got coolant on my opti when changing the intake manifold gasket. i hooked up the opti vacuum lines and took it around the blook...its still not perfect but its idling a helluva lot better.

keep in mind there have been many many 100 plus degree days since the opti got wet...so i hardly doubt that those vacuum lines somehow pulled moisture out of my opti, thus allowing it to idle better

what gives??
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Old Jul 18, 2009 | 07:59 PM
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man..i'm gonna have to create another profile and reply to my own topics just to make myself feel better..lol

c'mon guys..not tryin to nag..just want some help/opinions
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Old Jul 18, 2009 | 08:05 PM
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are you 100% positive the opti is in the right notches bc it can go on wrong and you not know it check your timing also, and if it still isn't right take starting fluid and spray it all over the engine while its running and see if it idles up bc you might have a vacuum leak
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Old Jul 18, 2009 | 08:16 PM
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hey blk99ek..thanks for the ideas. I installed the opti last year and have had no problems until i replaced my intake gasket, so unless it jumped, my timing is fine.

on the vacuum idea...spraying all around to check for vacuum leak was one of the first things i tried...unfortunately i didnt find anything one other note on the vacuum idea is that the problem doesnt exist when its cold...wouldnt cold/hot not matter if it were vacuum?
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