bmn switch, where i tach wire
Thread Starter
Staging Lane
Joined: Aug 2005
Posts: 87
Likes: 0
From: fort wayne, IN
bmn switch, where i tach wire i have recently installed the bmn window switch, and i have everything ran except the tach wire, i havet a clue which wire to tap into to attach the tach wire to get the reading for rpms. the instructions said you can use the negative side of the coil packs, but i would rather go the route of taping into the tach wire from the computer. please help asap. thanks
Go to the MSD website and look for the instructions for the digital window switch. I know for the 2000 and up years f body its the #10 pin, white wire. The pin numbers are on the pcm harness connector.
Thread Starter
Staging Lane
Joined: Aug 2005
Posts: 87
Likes: 0
From: fort wayne, IN
thank you, does anyone know for sure that the number 10 pin, white wire is correct or 1999s also. want to be 100% sure, computer isnt something to guess at. more feedback the better, thanks guys
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