I just finished up my PI swap last night, and I ended up breaking one of the sensors on the intake. It is the green colored sensor located on the passenger front side of the intake.I know they are both for temperature, but does anyone know what it controls and what it is called. I think the DS sensor is for the cooling fan correct?

 

If you're talking about the intake manifold then...

No, that should be your coolant temp sensor.

NPI's have one for the ECU and one for the Gauge. I think "that one" is the ecu but don't quote me. Obviously if it's the temp gauge one your gauge wont work. If it's your ECU sensor, your engine fan will turn on and not go off.

hope it helps.

Mike

 

Cool, yeah I did a little research and found out a little more. Thanks for the help.

It looks like one is a temperature switch, and one is a temperature sensor. I am guessing the switch is for the fan, and the sensor is for the guage. Now I just need to figure out which one is broke.

 

No they don't. And no you can't just eliminate one. They have different values. You'll have to get a 5/8's NPT brass T fitting from Home depot and cut into the coolant hose running from your water pump to the Heater core. There are other ways but this way is the safest and easiest. You'll have to lengthen the wires to the sensor to run it back behind the intake. Thats the way I have it done on my car.

 

I may have been wrong about the size of the thread. I had 5/8's on the brain... Just take your sensor into Home depot and find a t fitting with a thread that fits.


{EDIT] ONE MORE THING:

It's not a switch for the fan. It's a temp sensor for the ECU. If the ECU doesn't get the signal, it's thinks somethings wrong with the car and turns on the fan to protect itself. YOU need that sensor to let the ecu work properly.


THats what's refered to as "Limp Mode". Limp mode isn't the scary thing everyone always says it is though. Your fuel maps stay the same and your car still runs the same it just keeps the fan on when ever the ignitions on and it has a harder time learing. YOu need to kix it.

 

Cool, thanks for the help.