thook

Hello anyone with a '92 3.0...or close...

What's the little sensor with the blue connector at the back of the manifold right next to the engine coolant sensor. I don't see it anywhere in the FSM. I need to replace it TONIGHT if at all possible.

justinking060310

does it have 2 vacuum ports on it?

justinking060310

which one?

thook

It's the one to the far right in the pic...well, where your's is missing....to the right of the grey one (ECT sensor). Is that the temp gauge sending unit?

Also, what is the big black one next to the heater hose? The cold start injector time switch? It appears to be in the FSM, but I need to make sure. Mine is snapped in half.

justinking060310

well, where that blank is on mine is cast aluminum, like there isnt anything to be put in there. The little one just to the right of the heater hose is my temp sender. Remember i have a 2wd 4runner('95)

kat

DeathCougar

iTrader: (23)

those rear sensor blocks changed every year, so that 95 will be different from the 92 you are working on. Isn't it GREAT?!

thook

Okay, now I know where the temp sending unit is. However, the blank one on yours.....is it not threaded?

And what about the black one?

justinking060310

nope, you cant put anything in it - no hole and no threads

thook

Her's looks identical to mine...except for this mysterious one I'm trying to identify. Isn't THAT great?

Grrrr....I'll keep searching. I know there was thread around here somewhat long ago that talked about this "blue sensor". I just haven't been able to find it.

thook

Oh! Bummer....a hole with no purpose. How sad...hehe.

Thanks anyway, then.

Someone give a shout if you have a clue.

justinking060310

it seems unlikely to be involved with the 4wd - but thats the only diff I can think of...

thook

Yeah, I really don't think it does at all. It's got something to do with the coolant...that I know.

thook

No one?

GSGALLANT

I'll try to check my parts catalog tonight. So you have a total of 5 sensors back there?

thook

Yes, five. Thanks a bunch!

jasond

Here is a pic of what toyota calls those sensors, (E2, S1, W2, W3)...

thook

Okay, but mine has five. I suppose I'll have to call Toyota Mon. The runner is stationary, anyway. No hurry now....pffft.

Thank you jasond!

GSGALLANT

I also checked my parts catalog last night, and I couldn't find any reference to a fifth sensor.

thook

I must be confused or misunderstanding something.

Are the four sensors shown in the pic above the same as what is shown in the parts diagram pictured here?

jasond

The pic that I posted will not show the vacuum switching valve b/c it is not electrical (The bule/green part that is on the left that has two vacuum hoses going to it and is in front of the little upside down u shaped coolant hose on the pic above). That pic is out of the Toyota wiring diagram book. Are all five sensors that you are referring to electrical?