89 Supra

[fox252]

I am wondering where I can find the air temperature sensor, turbo pressure sensor and the oil pressure sensor on my '89 Supra. I need to check and possible replace these but I am having difficulty locating them. Thanks.

[cdnsupra]

turbo pressure sensor is near the firewall on the drivers side. it is marked as such, and is a squarish black box with vacuum line(s) plumbed into it.

the oil sending unit is below the turbo on the passenger side from what i remember.

air temperature? do you mean what measures the tempoerature inside the car? it is located on the passenger side of the dash above the glovebox. there is a tiny slot with fins you can see easily from the passenger seat.

i don't know of a sensor that measures the air temp going into the engine. the idle is controlled by a water temp sensor. it is located on the turbo side of the engine behind the water pump, but in front of the power steering reservior.

hope that helps.

[fox252]

Thanks! I will look for them tomorrow, the computer actually is telling me the the air temperature sensor is out of range, I just remembered that is usually located in the air filter box!

[bgrieger]

air temp is integrated into the AFM, and is not servicable without replacing the entire afm electronics box...kinda pricey, so check the connections first!

Bob