gen I rpm window switch

Scott E. Smith

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has anyone installed a rpm window switch ( for nitrous) into a gen ! viper? if so which wire does it go to for the tach signal....any help would be great!!!!1
 

HP

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Look in illistrated upgrades at the shift light install,
I think the same wire on the PCM plug (which is (I think) the #4 coil wire) would work.
 

Jack B

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If you are using the MSD window switch, you do not use the tach leads. You pick up any one of the coil driver leads. On a Gen 2 is in PCM C3. Use the search function, I displayed the location/pics of an installation for a shift light, it does use the tach leads which can be picked up in C1.
 
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