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Author Topic: MAF temp rading vs ambient air temperature  (Read 1192 times)

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Andy A

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MAF temp rading vs ambient air temperature
« on: 22 August 2017, 12:03:08 »
My MAF is reading 24c on a run down the motorway but the ambient air temperature is only 13.5c yesterday. Is this normal operation for a MAF sensor on a 2.2 petrol 2003?

Thanks
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Marks DTM Calib

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Re: MAF temp rading vs ambient air temperature
« Reply #1 on: 22 August 2017, 13:38:00 »
Not far out (there will be some slight heating of the air as it passes through the air box)and the intake air temp has little effect on the fuelling anyway  :y
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Andy A

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Re: MAF temp rading vs ambient air temperature
« Reply #2 on: 22 August 2017, 16:32:37 »
Quote from: Fuse 19 on 22 August 2017, 13:38:00
Not far out (there will be some slight heating of the air as it passes through the air box)and the intake air temp has little effect on the fuelling anyway  :y

Thanks Fuse 19 for the info.  :y

Should both temps be the same before the car and just as the engine is started if the car has been stood all night and its early morning before the sun comes up? Mine is still showing roughly a 10c difference.
« Last Edit: 22 August 2017, 16:40:09 by Andy A »
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