RS problems 01 F-150

go into the engine bay to either a coil or a fuel injector. there will be two wires each. i use a test light to test for tach, but a meter works too.Shaun, we are the same height, that is neat!

12V Installation Technician for Honda, Dodge, Chrysler, Toyota and Jeep.

DEI has this posted for tach FORD, F SERIES LIGHT DUTY, 2001, Tachometer Tach wire: on the 4.2L it is a dk. blue/lt. green at the coil pack on top of the motor. On the 4.6L go to any of the 8 ignition coils and use the wire that is not RED / green. On the 5.4L it is a lt. GREEN / WHITE at the coil on the passenger side of the motor between the fuel injectors. Should clear it right up for you.

Well, I grabbed the dk blue / lt green at the pcm pin 26 listed on Code alarm website. metering it yields 12

Tachometer connections are AC voltage, not DC. And I am not trying to offend anyone, but it has been my experience that the Audiovox/Code alarm information on the web, although pretty good is not as accurate as Directechs. Even with the good information all circuits should be tested with a DMM PRIOR to connecting to them!

I would go to an injector for the tach signal, for about two years now dei changed there units and they have a hard time learning the tach wires of fords.  Look at the injectors and each  should have a common colored wire and one thats differant for each injector use that one.

Use an injector wire that is not RED and it will work for you.Jeff

Velocity Custom Home Theater

Mobile Audio/Video Specialist

Morden, Manitoba CANADA