bzubke1

I was looking around the engine bay today when I noticed this sensor is not plugged in. It looks like it is plugged into the intake manifold. I was hoping someone would know what it may be for.
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mr2tosc4

iTrader: (1)

That's the one directly below one of the coils on the UZ?

bzubke1

It's the only one I could find also the car is a 95 sc400.

bzubke1

Anyone have any ideas. The sensor is under the coil and upper radiator hose.

IS_250

iTrader: (2)

looks like the water temp sensor for the cold start injector.. does your car idle high on cold start?

bzubke1

Actually it doesn't idle on a cold start I have to hold the gas at 1200rpm for about 45seconds before I can put the car in gear. If I don't hold the gas the car will just die.

Carfreak70

iTrader: (16)

^^think u just solved your problem

bzubke1

I think you might be right but I searched around and couldn't find the plug that is supposed to be there.

IS_250

iTrader: (2)

yeah, its the cold start injector water temp sensor. once the car gets up to operating temp, it cuts the extra injector. there are 2 temp sensors above it for the temp gauge and ECU.

bzubke1

Thanks for all your help man. Ill have to really dig into it tomorrow and see if I can find the plug thats supposed to go in there. You wouldn't happen to know which side the wire harness comes from so I could norrow my search a little bit.

tuterz

iTrader: (11)

sorry to steal you thread.. but i have a wire with that same plug just hanging in my car too.. but mine is a 300.. it hangs right next to the starter.. does anyone have an idea where it needs to go?