Sensor pale on 99 z71 sierra?

my sensor light come on suddenly on my sierra, 5.3 litre, was driving through dampen, puddles when it happened, power still seem good and runs fitting so what is the most common incentive of sensor lights in these truck to pick up me the 150 dollars on taking it to a dealer for sensor

I only bought an 02 Accord V6,...



Answers:    is it purely the check engine light that turned on? If it is its probably because of a misfire when something get wet. Check next to local parts stores to see if they can pull the code stale the ecm (most do it for free) and have them reset the ecm.

55/60 w bulbs upgrade to 90/100w H4...


What sensor?

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