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Help Asap With Air Temp Sensor

tm_r33

By tm_r33,
in Engines & Forced Induction

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tm_r33 Experienced

tm_r33

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My r33 is currently at a tuner on the dyno but the air temp sensor is reading 50 degrees all the time. im running a haltech platinum sport 2000 with supplied air temp sensor. its a 25 in a 33 gtst. need help as its preventing car from being tuned??????

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GTSBoy Grand Master

GTSBoy

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Check the temp sensor's resistance at various temperatures (ie, warm it up in water, cool it down in the fridge). If its resistance is observed to change (and make sure the values you see are in line with what is expected for that sensor) then try connecting resistors of various values to the sensor's loom plug and see if the Haltech tells you differing temperatures (that would match the resistors). If that doesn't work, try the resistors direct at the ECU's pins.

You get the idea. You're trying to work out if the sensor is borked, the ECU is borked or the wiring is borked.

tm_r33 Experienced

tm_r33

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Thanks for the responses guys. it would seem that the problem was that the last person to calibrate the air temp sensor had it that far out it wasnt funny. lucky car hasnt really be opperated on that tune.

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