shift light on 2.3 liter
Elder User
Joined: Jul 2002
Posts: 665
Likes: 0
From: Kingsland, GA
shift light on 2.3 liter
Does your truck have the dual coil packs? If it does, the only place I found to hook it up is into the factory tach supply wire. Get yourself a Haynes manual to locate the wire by color (It should be in the big wire run coming out of the firewall). Tap it in there... It's a pain, but if you run it off the ground from only one of the packs, you only get half a signal. (My tach originally only read to 3K when the motor was at 6) Hope this helps... If you need any more help, Post back with whatever you need.:-X11
New User
Joined: Dec 2002
Posts: 4
Likes: 0
From: Albuquerque
shift light on 2.3 liter
Below is from www.autometer.com
Before '93, call us for specific details. For '93 and '94, depending on the size of the motor, you can do the following. 2.3L - off the PCM (powertrain control module) go to pin 4, which is a tan wire with a yellow stripe. Or, go to the ICM (ignition control module) and splice pin 12, which is a tan wire w/ yellow stripe - this is the same for the 4.0L, too, except for the ICM connection, it will be pin 2 instead of 12. For the 3.0L, off the PCM the tach signal will be pin 4, which is a white wire with a pink stripe. Or, you can go to the ICM, and splice into pin B, which will be a tan wire with a yellow stripe. Now, from '95 to present, you can splice into the PCM, which should be mounted on the passenger side firewall. You will need to splice into pin number 48, which will be a brown or tan wire with a yellow stripe, to obtain your engine RPM signal. (2.3L is = 2 PPR; the 3.0L, 3.8L, and the 4.0L is = 3 PPR)
Before '93, call us for specific details. For '93 and '94, depending on the size of the motor, you can do the following. 2.3L - off the PCM (powertrain control module) go to pin 4, which is a tan wire with a yellow stripe. Or, go to the ICM (ignition control module) and splice pin 12, which is a tan wire w/ yellow stripe - this is the same for the 4.0L, too, except for the ICM connection, it will be pin 2 instead of 12. For the 3.0L, off the PCM the tach signal will be pin 4, which is a white wire with a pink stripe. Or, you can go to the ICM, and splice into pin B, which will be a tan wire with a yellow stripe. Now, from '95 to present, you can splice into the PCM, which should be mounted on the passenger side firewall. You will need to splice into pin number 48, which will be a brown or tan wire with a yellow stripe, to obtain your engine RPM signal. (2.3L is = 2 PPR; the 3.0L, 3.8L, and the 4.0L is = 3 PPR)
