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Author Topic: Tachometer Installation nineeightstang ¯ Member # 2685 posted                              I am finally going to try and install my tachometer after a couple of months of having it. I have a 98 GT and i need directions on how to do this install. I already know that red=positive, black=ground, and green=tach terminal. Where is the tach terminal on my year car and how to I connect into it to get a signal to the tach. What color wire is it? Posts: 109 | From: oakland | Registered: Apr 2003  |  : NvrGoFullRetard CAFords OG Member # 1633 posted                                 if i have time i will pull my gauge cluster out but i dont know if i will have the time.but if u were to pull the cluster out and take a test light to each wire that goes to ur stock tach and jump a wire to ur new tach and give it some gas it should be able to tell u. this is what i did to get mine to work. like i said if i get time i will look at mine. chris -------------------- "formally 4.6 eatin gm's" white 97gt n/a 320rwhp/325rwtq 01 sierra rcsb lsx 408 (murdered out) 03 ecsb sierra 6.0 on 22's 2011 Tahoe Posts: 2759 | From: PITTSBURG/FAIRFIELD | Registered: Aug 2002  |  : NvrGoFullRetard CAFords OG Member # 1633 posted                                 oh yeah if u havent connected the other wires in then i suggest u use the stock wireing harness from ur stereo if u have an aftermarket one in. -------------------- "formally 4.6 eatin gm's" white 97gt n/a 320rwhp/325rwtq 01 sierra rcsb lsx 408 (murdered out) 03 ecsb sierra 6.0 on 22's 2011 Tahoe Posts: 2759 | From: PITTSBURG/FAIRFIELD | Registered: Aug 2002  |  : nineeightstang ¯ Member # 2685 posted                              i will try to do that, do i test the wires on both harnesses that go to the stock cluster? Posts: 109 | From: oakland | Registered: Apr 2003  |  : NvrGoFullRetard CAFords OG Member # 1633 posted                                 look for the wires that go into the back of the stock tach and test the wires ith a rev of the motor.and if the test light lights up thats ur wire -------------------- "formally 4.6 eatin gm's" white 97gt n/a 320rwhp/325rwtq 01 sierra rcsb lsx 408 (murdered out) 03 ecsb sierra 6.0 on 22's 2011 Tahoe Posts: 2759 | From: PITTSBURG/FAIRFIELD | Registered: Aug 2002  |  : nineeightstang ¯ Member # 2685 posted                              Thanks a lot, i have it installed and hooked up and it works great. The green went to the brown wire w/ yellow stripe and the red wire went to the red wire w/ yellow stripe on the white wiring harness. Thanks again. Posts: 109 | From: oakland | Registered: Apr 2003  |  : NvrGoFullRetard CAFords OG Member # 1633 posted                                 cool glad to help chris -------------------- "formally 4.6 eatin gm's" white 97gt n/a 320rwhp/325rwtq 01 sierra rcsb lsx 408 (murdered out) 03 ecsb sierra 6.0 on 22's 2011 Tahoe Posts: 2759 | From: PITTSBURG/FAIRFIELD | Registered: Aug 2002  |  :

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