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Old 02-21-2014, 04:15 PM
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IAT Sensor and Timing

I read an interesting thread over on the red site involving a viper owner who was concerned about the performance of his car in relation to the IAT sensor readings. He essentially came to the conclusion that the IAT reading directly affected the timing regardless of the actual temp at the IAT sensor. My question is, if we pulled the IAT out of the intake and wrapped it with heat shielding material preventing the fluctuations in temperature, would our timing remain the same therefore performance remaining consistent?
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Old 02-21-2014, 05:45 PM
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Re: IAT Sensor and Timing

many here seem to relate better performance to lower IAT temps. I know as soon as I added my bwoody this summer and the IAT temps came down...my jeep really performed much better. As far as stabilized IAT times....are owners seeing IAT times jumping around and inconsistent?
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Old 02-21-2014, 06:27 PM
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I think we all can agree that hot air causes underperformance with our jeeps because of the properties of it. The question is does the computer pull timing based on what the IAT sensor reads independent of what the actual temperature of the air inside the intake is? The guy with the viper took a separate temp reading of his intake and got a much cooler reading than what his IAT sensor was reading yet his car was nonetheless underperforming as if the the IAT sensor reading was true.
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Old 02-22-2014, 08:34 AM
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Re: IAT Sensor and Timing

I remember reading about this. The theory was that when the IAT sensor saw 95* temps or higher, it would pull timing. But, the ECM wouldn't "give" back the timing it had pulled, even after the IAT temps were back down again. "If" I remember correctly, it would keep the pulled timing setting for that drive cycle.
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Old 02-22-2014, 10:28 AM
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Re: IAT Sensor and Timing

I have tried moving the IAT sensor down lower on the bwoody, it didn't do anything for the timing but it did richen up part throttle a/f
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