is there anybody that has wired up a tach on an 03 truck pcm? my friend did an 03 8.1 swap in a 95 2500 and cant get the tach to work, I have efilive to program the pcm and I have schematics that show RPM out on C2 pin 10, but no tach.
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is there anybody that has wired up a tach on an 03 truck pcm? my friend did an 03 8.1 swap in a 95 2500 and cant get the tach to work, I have efilive to program the pcm and I have schematics that show RPM out on C2 pin 10, but no tach.
i might be wrong but i remeber somewhere that its the white wire coming outta the pcm plugs, let someone confirm first my brain isnt really firing right now.
check out this link i had to do it on my swap worked great.Fixed Tach... YES!!! - LS1TECH