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Thread: strange ambient air temp

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    Default strange ambient air temp

    getting a fault on me 1.9 cdti, when i plug in opcom i get a high ambient reading of 215c which is a little high, outside temp reads -40c so i think a wiring fault somwhere but where to look first??????

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    Regular Member lee gsi's Avatar
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    Do you have a pre or post facelift?

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    Pre face lift

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    Regular Member lee gsi's Avatar
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    Check the condition of the front bumper plug near to the nearside fognight

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    did that first still the same readings

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    Regular Member lee gsi's Avatar
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    So you checked the multi plug (Not the sensor plug) for corrosion and it was fine?

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    only checked senser plug and not checked anywhere else yet,but when senser was unpluged it still showed the same readings. will check the plug further up the harrness when im back with the car as im away till thursday.

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    Regular Member rich r's Avatar
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    The fact that it gives the same reading when unplugged tells you that there's a break in the connection somewhere.

    And on pre-facelifts, it's almost certainly going to be the connector block that the temperature sensor circuit goes through at the bottom of the bumper in front of the radiator near the passenger side foglight, which is exposed to all kinds of water, slush, salt, dirt, oil, mud and spilt screenwash.

    Unplug that, and clean all the corrosion and muck off the connections then see what it does.

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    well think ive found problem, seams when i had radiator fitted 12 months ago he trapped the wiring for the outside temp. wire had been rubbed through with the weight of the radiator on it. ten mins with soldering iron and it seams ok so will see what happens now. cheers for everyones help

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    Regular Member lee gsi's Avatar
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    Nice to hear you got to the bottom of it.

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