Wiring Questions

[JMFND]

Hooking up a dynojet wideband commander looking for info(color) on 5v signal wire from TPS and where I can get a tach signal from. The TPS won't be much of a problem. But I need help on the tach for sure. Directions say hook it up to one coil and change the setup(in the control module) to only read one coil. 2004 ZO6

[FRC Tom]

From the DynoJet web site.

LS1 / LS6 have two sensors but they are combined into one box and there is a single connector.
It is a 6-wire connector at the passenger side of the throttle body. The wires are:


A DK GRN/WHT - TPS1 5V reference

B PPL - TPS1 ground

C DK BLU - TPS1 signal

D YEL/BLK - TPS2 5V reference

E WHT - TPS2 ground

F PNK - TPS2 signal

You have to connect the WBC TPS wire to the dark blue wire (C - TPS1 signal).



The tach wire is pin 10 on the PCM and it is a white wire. You can see the pin number by squeezing the end of the gray cover and releasing the clip and moving the cover to the side.

[wlxx861]

Originally Posted by JMFND

Hooking up a dynojet wideband commander looking for info(color) on 5v signal wire from TPS and where I can get a tach signal from. The TPS won't be much of a problem. But I need help on the tach for sure. Directions say hook it up to one coil and change the setup(in the control module) to only read one coil. 2004 ZO6

You can find a tach signal wire under the dash on the drivers side. Remove the knee panel under the steering column, lay on your back and look up. You will see an harness with 2 pieces of foam around it. Inside that harness are 4 white wires. 2 of the wires are right next to each other, another is a larger diameter wire. There is 1 wire all by itself on the other side of the harness.......tach signal. This is how I hooked up my shift light.

[JMFND]

Thanks for answering. Your info is right on the money.