A340 gearbox sensor question

[PlacentaJuan]

sorry no pic but its easy to find;

on the right side of the gearbox the 2 lines that supply tranny fluid to the radiator for 'temperature adjustment', the front line (which i think is the supply and the other line is the return becuase it goes just above the sump) there is a screw in sensor where the line is attached to the gearbox housing (like a temp sensor) with a plug and wires plugged into it.

anyone know what this sensor is for? and do i need it, looks like a good place to screw in an aftermarket temp sensor.

[madmont]

It is a temperature sensor should be wired to your ecu

[jimmmayyy]

Yep, and the computer will need the temp signal for it to shift into overdrive. Without the signal it won't shift.

[CrUZida]

The 2JZ Auto must be different.
Coz all the other Toyota auto's do not have this sensor, and they use the engine temp sensor to determine the OD shift.

[brett_celicacoupe]

http://www.wjw.co.uk/Toyota/95%20Sup...e%202JZ-GE.pdf

page 10

[Mos]

Yeah the auto is different to the older ones. The newer autos have this sensor mounted internally.
Mos.

[PlacentaJuan]

thanks brett i have been looking for that pdf for ages.

mos:

is the sensor wired up? the car seems to take a very short time to 'warm up' ie it will shift into overdrive whithin 5 mins of driving and the water temp (factory) guage hardly has moved.

if the transmission temp gets too hot will i get a warning light, or will it be the o/d light flashing?

[cambelt]

Prob the overdrive lamp flashing as theres no overtemp output from the ecu .
Dave