hey i am new on here an i was lookin for some help with wireing a tach on my truck. I have a 94 Ranger 4.0 2 wheel drive what wire do i splice into to get the tach read the rpm's...thanks guys

 

im not sure wat ignition module you have but i have the DIS module. there is a black and yellow wire that comes out of it on the bottom. splice the wire into the black and yellow.

 

On the chart for the tach I have it says for 91-94 4.0's it is the tan/yellow stripe wire.

 

The tach signal can be tapped from the tan/yellow which runs between the PCM and the instrument cluster.

 

hey guys thanks for the help but i still cannot find the tan/yellow wire!!! does anybody have a pic that showes me exactally where it is??

 

????? anybody have anything??????

 

The PCM is in a pocket in the firewall in the driver side rear corner of engine bay. The tan/yellow goes from pin #4 of the PCM, through the firewall into the interior and on to the back of the instrument cluster. IMO, the easiest place to tap it for an A/M tach would be where the harness enters the interior at the large bulkead connector under the DS of the dash.

 

i couldnt find the tan/watever either mine is currently hooked into the black/yellow on the DIS module and works fine. but then again my orig. tach did not work so i had to improvise with the wiring diagram. the black/yellow carries the engine rev info to the comp. i believe.

 

ok ill c what i can do thaks guys

 

how do i know what one is pin #4 i have never worked on any car that is fuel injected or newer than 1987 im pretty new to this kinda stuff. a diagram of it would help me the most. thanks

 

It's in the 60-pin connector to the PCM. Pin 4 is the 4th one in near one of the corners.

Look for the color code.

 

i finally got arround to lookin arround...no i cannot find the tan/ yellow wire...and as far as the black and yellow wire i dont want to test that an blow something up....if somebody could show me a picture of where the tan/yellow wire is in the engine bay that would help a whole lot..seeing as the weather is starting to drop i would like to do this while it is still kinda warm

 

hey man look to see if you can find the coil and hook it up that way

 

hook it up by the coil..ok there are 5 wires comeing out of the side of the coil...are there more on the bottom of it or what wire do i splice into off of the coil

 

???? 18 hours later and nothing??? u guys really do know your stuff..i just cant wait every other day to get a respond. sorry for the inconvienance