C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Opti Position for Restart?

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Old May 7, 2005 | 12:05 PM
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Default Opti Position for Restart?

Finished my cam swap. Now I can't get it to start. I can smell plenty of fuel so I'm figuring spark or timing. At first I thought my valves were too tight so I loosened them a little so I'm sure they aren't sticking open.

I'm now thinking th opti position or whatever is out of wack w/ the computer. I can't find anything in the Helms manual about this but I know it exists.

Also during this cam swap I changed to the 95 style opti from the 92 if that makes any difference. I'm 90% positive I have wired up the new harness correctly also.

Please help me! I reallky don't want to tear into it again!!!!
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Old May 7, 2005 | 12:44 PM
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As long as you installed the opti correctly, and the spark plug wires are in order. There is no particular position the opti has to be in to restart.
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Old May 7, 2005 | 12:50 PM
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Originally Posted by STL94LT1
As long as you installed the opti correctly, and the spark plug wires are in order. There is no particular position the opti has to be in to restart.
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Old May 7, 2005 | 01:00 PM
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Originally Posted by VictorRussell'92
I've yet to install a 95/96 opti. But, I assume there is only one slot for the camshaft's dowel pin.

As you've stated, it sounds like an electrical problem. I would double/triple check all electrical connections.


Good Luck.
-Mike
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Old May 7, 2005 | 01:47 PM
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the opti only fits one way.... even plugs on the right, odds on the left... the coil wire is left, so are all the hoses for the vacuum.

make sure the coil wire, ignitor, and opti are wired correctly.
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Old May 9, 2005 | 11:29 AM
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Success.

After checking everything and rechecking I went ahead and pulled the opti to check the position.

Somehow the rotor rolled during installation and went into the wrong pin. I still have no idea how I did this but it was in the wrong one....

Well it works fine now. Unreal how easy it is to misalign the opti. I had no idea.

Thanks
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Old May 9, 2005 | 11:35 AM
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Great news!! I'll have to be careful when I upgrade my opti.

So, how's the car run?
-Mike
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Old May 9, 2005 | 12:26 PM
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Originally Posted by STL94LT1
Great news!! I'll have to be careful when I upgrade my opti.

So, how's the car run?
-Mike

Really good. Suckers got some good rumpety rump with the new cam. I have been driving like Granma though cause I want to give it a little break in before the higher RPMs.

BTW that tip on the opti connectors was correct. I just went by the numbers on the old and new connectors and she runs great.
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Old May 9, 2005 | 12:57 PM
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Hey Vic, this is great news So ya like that ratta-tat-tat at idle......its pretty addicting for a daily driver What rpm is your idle set at?
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Old May 9, 2005 | 06:01 PM
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Originally Posted by bradvette
Hey Vic, this is great news So ya like that ratta-tat-tat at idle......its pretty addicting for a daily driver What rpm is your idle set at?
Still set around 800 to 900. It really idles fine there. Funny thing is, it is much easier to stall the car and kinda get it in a tizzy. So when you are letting the clutch out do it fast with a little more gas. If that makes any sense.
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Old May 9, 2005 | 06:25 PM
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I been saying it for weeks now it IS possible to install an Opti wrong my ex-mechanic did it. Glad you got it Victor.
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