Ive had my tach signal tapped at the #6 coil at the top left hand side of the engine...well tomorrow or Thur I am going to change it to inside of the car and tap at the ECU...I think the connection at the Coil isnt a good idea and I may be getting a hesitation from that ??

well any good writeups or explinations as to what wire to tap under there at the ECU ?? Its pretty much take the connection off of the #6 Coil, and move it down to the ECU wire for the tach ??

-matt

 

Have you had your ECU out before? The wire you want is white with a green stripe. It's buried in the mess of wires pretty good so it may be hard to find. I believe it's next to a couple purple wires....and I think a Haynes manual will give you a wiring diagram of where it's at as well.

Your gonna have to take disconnect the harness from the ECU, undo the bundle of wires to search for the white w/ the greens stripe. Tap it and rebundle the wires back together.

 

Never had the ECU out before
Its it more reliable then having it on one of the coil packs ??
when tapping, do I need to solder or can I use a regular red wire tap ?

Could having the RPM signal from then effect how the car runs ??

 

bump to the top ??

-matt

 

I don't know if it's such a good idea to get a rpm signal from the coil, just go to ECU, find the plug with a signal and color of the wire you will find it in the snap.

 

What RPM switch are you using? Harlan or Summit?

I tapped the TAM screw on the back of the gauge cluster for the tach signal for the Summit RPM switch. Pulling the dash apart wasn't the most fun Ive had but it wasnt all that difficult either. Much safer option than cutting the ecu harness. I'm not that brave!

Cheers!

 

Im using the Harlan Switch..Ill be tapping in to the ECU signal this upcoming week...

Its ok to use wire taps correct and NO solder ??

-matt