gamerndm

i know this has probably been explained before, but ive been searching for 20 minutes and cant find it.. but anyway, can someone tell me (or preferably show me a picture) of where the ECT sensor is located on a 22re? thanks a bunch!

mr toytech

it should be right next to the t-stat. mounted on the same housing.

gamerndm

you must understand that i can be slow at times... i see at least 3 sensors in that general area (and no, im not counting the injectors)

gamerndm

ok, never mind, i have it now, but now i need to know which wire is the ground and which goes to the ECU- theres a green/something and a brown(maybe ugly purple?)/something

thook

No man.....that's the temp guage sending unit.

The ECT sensor is on the front of the block under the top rad hose....right next to the start injector switch. One has a brown connector and the other green. You are looking for the green one....if it's OEM. In any case, it's to the right of the injector switch.

http://personal.utulsa.edu/~nathan-b...36electron.pdf

thook

Why do you need to know this? With a volt meter, you could easily determine which one is the ground and which is the signal, but I believe it's the brown one...if you're looking at the right sensor.

gamerndm

yep, brown is the ground, i got it all sorted out now (without a volt meter lol), thanks guys

i needed to know because im wiring up my version of the ECT mod, but i prefer to splice it in at the sensor end of the wire as to leave my wiring harness intact back to the ECU, it makes it easier to put it back to stock if i ever need to

anywho, its all wired up now, and works quite well

DCYota

Actually, that's not where the t-stat sending unit is either. The sending unit is on the intake side of the engine between the #3 and #4 manifolds (intake side/passenger side). To the left of the valve cover and it has a blue connector attached to the top of it. The sender is not on the same housing as the t-stat..not even close.

rdlsz24

That sending unit is for the cluster only. If you unplug that the engine will still run fine. If you mess with either sender on the front the engine will run like crap.

Rob

DCYota

I thought that's the one he was referring to...so yeah that makes sense. So, the coolant temp sensor is the green one under the t-stat housing...what's the one next to it to the left? Is that the cold start time switch?

thook

Okay...I may wrong, but I have single wire sensor/unit up top there....and it may not be on the same housing as the t-stat, but I thought it was the sending unit since it's definitely in the coolant and definitely right near the t-stat. I guess my point was, that was NOT the ECT sensor...

I do have the one with blue connector....although, I believe it to be between #2 and #3...and have never know what it was or for. I suppose some identification research is in order...

gamerndm

yep, the ECT sensor is right next to the timing switch DC