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Intake Air Temp Reading Low (Not The Sensor)

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#1 Avl_Paul


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Posted 08 August 2019 - 03:36 PM

While investigating my hunting idle and poor performance when engine is cold, I noticed using my Crypton ACT that the intake tank air temp is reading 15degC when the room temp is 24degC (with engine running or not).  I replaced the sensor and it is still reading the same.  It does increase when the engine is hot.  I noticed that it reads a constant 20degC with the sensor unplugged completely so I tried running the engine like that - the cold start performance wasn't noticeably better. 


Any idea why it is reading 9 degrees low?  Do they all do this?



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