Im not sure how it is on your buddy's car, but on an fbody, the sensor for the gauge and the pcm are separate - you could have a malfunctioning gauge sensor which is telling you that the car never warms up, but its the sensor that tells the pcm what is going on that will affect fueling.
Quote:
Originally Posted by Traction Issuez
my buddy was pissing and moaning about poor fuel mileage the past week or so, then came by saying he wants to change his t stat, i asked him why, he said the gauge never warms up and the car runs better after an hour of hard driving.....i pointed out the fact that the rad hoses were up to normal temp and changing the t stat would do sweet fuk nothing and to change the temp switch... he has yet to get back to me.
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