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Re: 91 c1500 stutter on acceleration
Ok, you might wanna focus some attention to this. The IAT Intake Air Temp sensor. Now these little pukes will lie if they go bad. Ethanol in today's fuels eat old ones up by eroding the sensors coating. Todays replacements are made with a better coating than those of old. Remove the IAT, and visually inspect it. If it is black, gooked up in any way, or looks eroded, replace it... usually about 10-15 bucks at box store. Just recently, I had a scanner on one that read correct info, but truck ran like too much fuel, not enough air. I took a shot in the dark, inspected it, It didn't look right, so I replaced it. Bingo, that was it. The little POS was lying the whole time.
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