MSD box problems

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Mar 22, 2015 | 04:01 PM

shaunls7

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MSD box problems

I have an 88 cutlass supreme that I just did a LS swop last yr from a 406. I am changing transmission to over drive and the car as been setting for e months, I tried to start the car with no trans mohnted and no fire. Have changed crank sensory and cam and no fire or rmp data. And suggestions.

Mar 23, 2015 | 07:10 AM

LS1-450

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Quote:

Originally Posted by shaunls7

Is there an interlock or signal required from the trans to allow engine start? Maybe, a "trans is in park" switch that's not hooked up since trans is out of the car?. I'd look into this first, then...

Check the connector pins/ports on the MSD wiring. Loose pins &/or oblong female ports in the MSD connectors have been found to cause issues. Also, ground MSD directly to battery.

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