Originally Posted by wilson
You are just the man I'm looking for! I need to know the best place to run my after-market tach signal wire for my 1999 Ranger V6 4.0 L Supercab 2WD. I did exactly what you said woudln't work right by wiring to the coil pack and you are 100% correct! I only got partial deflection on the tach! What color wire should I be looking for and where should I look for it?
Tan/yellow. It runs from the PCM (passenger side firewall), across the engine harness to the firewall bulkhead connector on the driver side and then through the firewall and up to the back of the instrument cluster in the dash. The easiest place to pick it up in the interior is in the large bundle of wires under the dash next to the P-brake pedal.
Configure your aftermarket tach for 6 cylinders per the instructions and you should be set.