kevin 67/6.0

need a little help finding temp gauge pin # thanks

kevin 67/6.0

is it #74 on blue side and # 80 ground

Palomba

iTrader: (1)

On what year and what motor?

kevin 67/6.0

2000 ls1 sorry

Palomba

iTrader: (1)

http://www.lt1swap.com/ls1_wiring_ha...nnector%20C100

http://www.lt1swap.com/2001_PCM_CONN_PINOUT.htm

kevin 67/6.0

thanks

Pocket

iTrader: (22)

Pins listed are to the CTS for the PCM. It wont run your gauge

Using a TPS connector and a 98 Fbody CTS, there is a wire to run your gauge

the_merv

iTrader: (88)

Yup..GM part # 12551708.

kevin 67/6.0

so i will need this i can not go from pcm to dicota digital box from pin # 74 and it work. not trying to be domb just trying to under stand. thanks

the_merv

iTrader: (88)

That 3-wire Temp Sensor will keep the 2 PCM wires in their places, and the 3rd is an analog output to the Gauges.

70cartruck

iTrader: (1)

which wire is the one that goes to the gauge....im sorry....

the_merv

iTrader: (88)

Top wire..the single one.

The 2 that are on the factory Connector go into the 2 Wires that are on the 3-wire connector in the same spots, the 3rd single wire goes to the Gauges.

eagleuh1

Good info in this post. So you can do away with putting the extra ECT sender in the passenger head and just use this 98 Fbody sensor in the drivers head using that TPS connector? Sounds good. Thanks.

djquik88

iTrader: (20)

What Kevin has is a 98 stand-alone harness that has been re-pinned to use a 99+ PCM. He is still using the 98 style temp sensor if I'm not mistaken. Everything is hooked up to the PCM and the car is running. We just need a signal to hook up to the Dakota Digital Instrument panel.

djquik88

iTrader: (20)

Just a note, I had a 98 harness that was modded by Speartech in my Mustang. I then re-pinned it to use the 99+ pcm. I kept the same 98 temp sensor...worked fine,So it had to pull off of the pcm.

Correct me if I'm wrong, but the only diff. between the 98 sensor and the 99+ is that the ground is made through the body of the sensor on the 98 . Thats the reason for one less terminal .

djquik88

iTrader: (20)

Damn, I may have the 98 and 99 sensors mixed up.......cant remember which one has 3 terminals .

the_merv

iTrader: (88)

^^1998 has the 3 Terminals..2 to the PCM, one to the Gauges. Both Sensors are grounded in the PCM, the reason for the 3 wire was cause it's still an analog gauge, 1999-up was digital gauges so the Temp Signal is sent in the Serial Data Wire.
Pretty much..2 wires to the PCM and the third to the Gauges.

When he told me that part it helped..that's a good piece of info to know. Is the Temp Sensor still a 3-pin though?

kevin 67/6.0

is now and works fine thanks. but it had 2 wire on harness i had to change the conector.

LS88FoxBody

iTrader: (2)

Anyone know where I can find the wire color for the factory gauge cluster that runs coolant temp?