henryjohnson9

President IAT Sensor Issue

I'm having trouble with my 2010 Nissan President, gasoline engine. The check engine light comes on sometimes, and the engine power is down with rough idling. The error code points to the intake air temperature (IAT) sensor. Has anyone had IAT sensor issues on this model, and what did you see?

The 2010 Nissan President experienced issues with the check engine light, reduced engine power, and rough idling, linked to the intake air temperature (IAT) sensor. Possible causes included a faulty sensor or bad wiring connections. Checking the wiring for corrosion or damage was suggested, and if the wiring was intact, replacing the sensor was recommended. Ultimately, replacing the IAT sensor resolved the problem, restoring the car's performance.

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4 comment(s)

I'm no expert, but bad temperature readings can cause engine issues. Could it be a bad connection? Check the wiring to the IAT sensor for corrosion or damage. Does the temperature reading on your scanner seem way off?

Good point about the wiring, I'll check that. But could a bad connection really cause all those symptoms? Also, assuming the connection is good, how much temperature difference would mean the sensor is bad?

That's beyond my specific knowledge, but even a slightly off reading from the IAT sensor can mess up the engine's fuel mixture and timing. If the wiring is good, and you still have those symptoms and the error code, the sensor itself is probably the problem. A workshop should check it.

Thanks for the advice, it helped confirm my thoughts. A new IAT sensor fixed the problem; the car runs great now. It cost 155€.

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NISSAN

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PRESIDENT