I finally have my stroker up and running but im having trouble finding good directions on wiring my tachometer (1990 YJ 4.2) to the OBD2 setup. Ive seen some people say that my tach wont work and ill need to get a different one and Ive seen some say you just need to splice the green signal wire into the gray coming off the coil which i have tried and it didnt work. Not sure where to go from here
Thanks in advance.
Tachometer wiring
-
- Noob
- Posts: 12
- Joined: April 5th, 2015, 9:50 am
- Stroker Displacement: 4.6
- Vehicle Year: 1990
- Vehicle Make: Jeep
- Vehicle Model: yj
-
- My keyboard is getting warn out
- Posts: 1032
- Joined: February 28th, 2008, 3:13 am
- Stroker Displacement: 4.9
- Location: Michigan
Re: Tachometer wiring
OBD2 pin 31 on the ECM connector. You will have to look up whether it's C1,2 or 3. Don't recall off the top of my head
-
- Noob
- Posts: 12
- Joined: April 5th, 2015, 9:50 am
- Stroker Displacement: 4.6
- Vehicle Year: 1990
- Vehicle Make: Jeep
- Vehicle Model: yj
Re: Tachometer wiring
C1 is blk/tan ground
C2 is VT/OR 5v supply
C3 is empty.
C2 is VT/OR 5v supply
C3 is empty.
-
- My keyboard is getting warn out
- Posts: 1032
- Joined: February 28th, 2008, 3:13 am
- Stroker Displacement: 4.9
- Location: Michigan
Re: Tachometer wiring
Gray C1
C31 circuit G21 GY/LB Tach Signal per FSM XJ Shop Manual
C31 circuit G21 GY/LB Tach Signal per FSM XJ Shop Manual
Who is online
Users browsing this forum: No registered users and 11 guests