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11-24-2009, 01:59 PM | #1 | |
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Location: Lawrence, Kansas
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2009 Matrix S 2.4L IAT Sensor
I recently did the resistor mod on a friends 03 Matrix with great success. I want to do it on mine, but I have completely different wiring. Could someone tell me which wires on the MAF sensor are for the IAT sensor? Also, is there a spec range available for the resistance at specified temperatures. The 03 took a 32.4K resistor and did the trick. I believe the 09 reading are different.
Thanks, John |
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11-24-2009, 02:10 PM | #2 | |
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Re: 2009 Matrix S 2.4L IAT Sensor
The MAF sensor is a heater, the IACT is a thermal resistor.
During the closed body condition, the air get warm, the IACT will detect the temp change, and signal the PCU.The WOT condition, it gets colder, air is drawn into the intake, the IACT will detect the change, and signal the PCU. What voltages does the PCU want to see during the Closed throttle body & Wide open throttle ? |
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11-24-2009, 02:30 PM | #3 | |
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Re: 2009 Matrix S 2.4L IAT Sensor
I understand where you are going, but the simplest way to "trick" the PCU is to just set the IAT at a constant temperature. Preferably one that provides the optimum A/F ratio. Throughout the closed loop, it doesn;t matter what the IAT reads. As far a tech specs go for the voltage reading, I have no clue.
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2009 , iat , maf , sensor , wiring |
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