Tach signal wire off PCM?
02-12-2009, 03:07 PM
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Tach signal wire off PCM? Which wire is it, its a 97 with an OBDII, the coil (factory) only has 2 wires coming off of it, i was having problems with my Window switch RPM readings, but the switch checked out good, i had it hooked to the "green" wire off the coil.
02-13-2009, 06:47 PM
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OK I found it online. It is the white wire that goes through the blue plug C230, pin D, then to the tach. On the red plug off the back of the PCM, it is A13, still a white wire.
Last edited by ak95ta; 02-13-2009 at 06:53 PM.
02-14-2009, 01:51 AM
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Thanks, found out its the "white" wire off the ICM, i had the window switch "tach" wire hooked too the "green" wire off the coil, RPMs were reading iratic.
