I have a 2002 chevy 3500 express ls with the 5.7 gas engine. I have recently replaced the MAF sensor and now I get a p0101 MAF out of range error. I have also replaces the air filter and gotten a second new MAF hoping that I just got a bad one but no joy there either. I get a hesitation at 35MPH when engine is at operating temp and if I accelerate through that range I do not seem to get the same bog down or any hesitation. I also seem to be burning a little more fuel and I was getting running rich codes before the replacement and maybe I need a TPS sensor but I thought I would ask and see if anyone had some ideas for me to try before I start really going crazy
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