speedshifterNC

iTrader: (1)

I'm trying to hook up a 5" monster tach to my 99 Camaro ls1. The light is coming on and I can adjust the shift set ****, but the tach itself is not registering any rpm at idle or when I hit the gas. I followed the wiring instructions but they were general and autometer was no help when it comes to the ls1. If anyone has hooked one up successfully please tell me which wire you used to connect to the green wire that is supposed to go to the coil. I hooked it to the large pink wire (I assumed an electronic ignition wire) under the steering column upon some advice of another ls1 guy on this site (my mistake). Apparently that was the wrong wire but luckily everything seems fine, it's just not working. Any help or advice would be greatly appreciated.

2001NBMZ28

Never installed one but think you need to connect it to the tach signal wire off the PCM. www.ls2.com/boggs/torques/99pinpcm.htm

Darren P

iTrader: (1)

you will have to hook it to the Tach signal wire out of the PCM
it is a pink wire but I am not sure which connecter it came out of
the odd thing is it (the Tach) will need to be set up like a 4 cylinder in stead of a 8 cylinder

not sure why this is but with my E-Boost ll boost controler it was reading double the tach till I swiched this in the E-Boost from 8 cyl to 4 cyl

speedshifterNC

iTrader: (1)

I already set it to 4 cyl but I'm still unsure which pink wire it is. Is it solid pink? Is it large or small?

speedshifterNC

iTrader: (1)

according to the link it's a pin 10 white off the red circuit...do you think this is right?

2001NBMZ28

Yes, try connecting it to the white wire off #10. Called my buddy and that's where he connected his shift light, then ran the wire to inside the car.

speedshifterNC

iTrader: (1)

So how do I locate this white wire in the engine bay?

speedshifterNC

iTrader: (1)

Do I have to use the same gauge wire to connect the two wires?

nick1ta

its pin #10 (the white wire). and yes i know their is more than one white wire but starting from left to right count the pins and you will get it!

speedshifterNC

iTrader: (1)

Thnx, now I gotta figure out what gauge wire to use

speedshifterNC

iTrader: (1)

Can I connect off of circuit 230 which is blue, still the white tach signal wire just closer?

speedshifterNC

iTrader: (1)

I got it...the autometer guy finally got back to me. It was the red pcm connector on passenger side under the cowl panel. white pin # 10.