Coolant temp

Gen210 said:

Click to expand...

Thanks, but sounds like that is the one for the gauge.I need the one for the pcm,for the fuel air.

Rob Turner said:

Where is the coolant temp sensor on as10 2.2 .How many are they.My temp gauge reads good.Just acts flooded after it gets warm and sits around 45 mins.

Click to expand...

What year?

Gen210 said:

View attachment 368278

Click to expand...

Thanks

oldeerslayer said:

What year?

Click to expand...

2000 S10 Truck. Had this truck a year,and trying to make everything right.Slot of thing were mess up.

Thanks.If this is bad why does the gauge read good?

Rob Turner said:

Thanks.If this is bad why does the gauge read good?

Click to expand...

I could he wrong but I believe it's a 3 wire sensor. One signal goes to pcm, one to the gauge. So it's one sensor sending 2 separate signals. Which is why your gauge could be correct while your pcm is not.

Rob Turner said:

Thanks.If this is bad why does the gauge read good?

Click to expand...

Who said it was bad? Pretty uncommon... the computer uses its reading to operate the gauge.

Lowdown_limbo said:

I could he wrong but I believe it's a 3 wire sensor. One signal goes to pcm, one to the gauge. So it's one sensor sending 2 separate signals. Which is why your gauge could be correct while your pcm is not.

Click to expand...

You are wrong... I literally just posted the pinout of the connector.

manbearpig said:

Who said it was bad? Pretty uncommon... the computer uses its reading to operate the gauge.



You are wrong... I literally just posted the pinout of the connector.

Click to expand...

Yeah, I saw, but the one in my truck is still a 3 wire. If you check rockauto both a 2 and a 3 wire are available for the 2.2

Lowdown_limbo said:

Yeah, I saw, but the one in my truck is still a 3 wire. If you check rockauto both a 2 and a 3 wire are available for the 2.2

Click to expand...

I really hate misinformation being spread 'round these parts. So please, tell me which one of these sensors for his truck has 3 wires.

manbearpig said:

I really hate misinformation being spread 'round these parts. So please, tell me which one of these sensors for his truck has 3 wires.

2000 CHEVROLET S10 PICKUP 2.2L L4 Temperature Sender / Sensor | RockAuto

RockAuto ships auto parts and body parts from over 300 manufacturers to customers' doors worldwide, all at warehouse prices. Easy to use parts catalog.

www.rockauto.com

Click to expand...

I wasn't attacking you, dude. Chill. We're all here to learn. Obviously you've been around for over a decade working on these and not everyone knows every nuance about what stuff GM decided to randomly change year to year. I wasn't trying to spread "misinformation" just adding to the conversation. The AC Delco 213815 that's in my truck is a 3 wire. I didn't know if he could have had that style or not. I'm not surprised that the obd2 vehicles are different which is why I said "I could be wrong" thanks for the clarification.

LOL, no one is attacking you. Your "adding to the conversation" is just causing confusion though. Your truck is obviously not a 2000 MY, or a 98+ at all since they are all the same as far as that is concerned.

On a 2000 S10 4.3L or 2.2L the temperature sensor is a 2 wire to the PCM. One wire is the temp signal and the other wire is lo reference (grounded inside the computer). There is no wire from the engine to the cluster for temperature. The temperature data is sent via class 2 serial data to the cluster on a single wire along with much other data such as fuel level, volts, etc. If the gauge is reading correctly the sensor and the associated wiring has to be OK. If your truck is running rich you have another problem. O2's? Map? You need to get a good scanner on it and read live data.