i have a 94 camaro z28 with stock lt1 i am tring to replace the wire and the sensor that sends the info to the gauge it has a 1 wire set up on it now and everywhere i have looked they are showing 2 wire set ups but they come with a new pigtail do i have to convert it over to 2 wire and if i do. would i just but connect both wires into the 1 orig wire?

 

Here are the correct part #'s from Shoebox.

1993-1997 coolant temperature sensor for gauge AC-Delco # 213-77; GM PN: 25037332

1993-1997 coolant temperature sensor for pcm AC-Delco # 213-4396; GM PN: 15326386 old 12146312

I know the still sell 1-wire sensors, because in the last week I responded to someone who bought a 1-wire and a 2-wire and asked which sensor went where.

If you install a 2-wire sensor in a 1-wire circuit, either terminal from the sensor attaches to the one wire connector, and the other terminal on the sensor has to run to an engine ground. Connecting them together and connecting both to the 1-wire harness will not work.

 

Go to pic a part best place for the one wire connector i have two you can get them off buicks caprices most i seen have two wires i may be wrong

 

I got my one wire sensor from Autozone. I'm wanting to say it was under $20.00