location of tempature sensor for gauge cluster.

[Jesuscookies]

Can someone give me the location of this thing?

I have a 2 wire sensor that sits directly under the throttle body. I believe this one is for the ECM, correct?

Where do I find the ever elusive 1 wire sensor that is used for the instrument gauge on the cluster?

Is it on firewall side of the block? hidden from view or something?

Thanks for the help.

[Jesuscookies]

Nevermind I found a link that shows a picture, and location of each

http://www.greatautohelp.com/questions/question28.html

I guess my next question is: can I convert to a 3 wire sensor up front just by rerouting that single wire in back?

[pocket-rocket]

I was going to give it a shot on the 92 when I got around to messing with the car. I imagine it would, but I can't say for sure 100%. In theory, I don't see why it wouldn't as long as the resistance vs coolant temp was the consistent between the 2 single sensors and the 3 wire.

[Azrael]

If it's a 94-95 car you can probably use the acdelco sensor 213-815. It uses a similar connector to the throttle position sensor and the middle pin is the single wire.

[Jesuscookies]

yes, it's a 1994 oldsmobile. I'm not too worried about parts at this point. My question is really about the amount of work involved. Is it just a matter of taking the single wire from the gauge sensor and running it to a 3 prong plug, then hooking it to a the 3 wire sensor? Do I have to swap the ECM, or is there any other involved process to contend with?

I think it would make more sense for the gauge and ECM to have the same information.

[CNCguy]

No need to change ECMs. If you don't want to cut and splice, you can use a three pin wiring adapter like this.

http://britishcarconversions.com/component/virtuemart/?page=shop.product_details&flypage=flypage.tpl&product_id=124&category_id=29

[Jesuscookies]

No need to change ECMs. If you don't want to cut and splice, you can use a three pin wiring adapter like this.

http://britishcarconversions.com/com...category_id=29

How freaking cool is that!

If the adapter and wires are long enough this would just be plug and play right?

[CNCguy]

IIRC, they are around 10~12" long but we build these in-house and can put one together with the lengths you need. Just let us know how long each lead needs to be.

[Jesuscookies]

IIRC, they are around 10~12" long but we build these in-house and can put one together with the lengths you need. Just let us know how long each lead needs to be.

Cool I will contact you through PM or directly on your site. Thanks for the help!

[Jesuscookies]

IIRC, they are around 10~12" long but we build these in-house and can put one together with the lengths you need. Just let us know how long each lead needs to be.

Thanks CNC guy! Got the new sensor, and adapter hooked up. Didn't have to remove the throttle body either. Offically changed over to a 3 wire temp sensor for the gauge and ECM together.

I was thinking I can use the old gauge sensor spot to put a lower temperature sensor in, if need be, to trick the ECM into turing on the fan eariler? Does anybody know what sensor, from what car, I can use to get the fans to turn on at 190, instead of the normal 230?

[Azrael]

If anyone knows the resistance of the sensor at those 2 temps, it should be possible to find the value of a resistor you could wire in parallel to trick the PCM into doing just that.