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Intake Air Temp sensor 2

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Old 03-01-2012, 07:29 AM
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Intake Air Temp sensor 2

What problems would a high reading on this sensor cause? Sitting over-night it's showing 147* F. Having long cranking time at normal operating temps. Hoping not a HPOP problem. Running now to see what this reading changes too when warm. '07 F-350 6.0
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Old 03-01-2012, 07:42 AM
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Check the wiring for a chaffing issue. Not sure exactly what that reading will cause the PCM to do with such a large difference between IAT and IAT2 as far as fueling goes on start up but you could disconnect it (PIA, I know) and make it go to a default condition to see if that aleviates the long crank time.
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Old 03-01-2012, 07:51 AM
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Maybe a chaffing problem. Also showing ECT of 181 and EOT of 225. Appears to have lots of problems. Had 15*F difference here after sitting over-night.
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Old 03-01-2012, 08:09 AM
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What kind of VRef voltage are you getting? Check the harness at the left fender liner also. Chaffing not usually a problem with 07's. Has the harness been butchered and have you checked the fan connector? Any aftermarket modifications?
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