i let my car is over winter, took it out one day when it still had some snow on the ground.. got stuck w/ my summer tires lol epic fail. i tried my best to get it out but along the line the motor went haywire the vac would bounce between -20 and 0. then die after it hit 0 would make the car miss until it shut down. i then attempt to start it up again and the "power steering" came flashing up. not sure what the relation is between the 2.

i havent had a chance until today to mess with it and hook it up to the scanner and what i found was the iat was at 154* when the car first started when it was clearly.. not a 154* out. and had a iat performace code. cleared the code. car ran fine but still read 154*-160* iat

any ideas? just a bad iat?

 

Iat2? Would explain the weird vac readings as well. TMAP wiring or sensor.

 

Iat2? is this upon the very first startup?

 

im thinking its the wiring. gm replaced the harness and sensor a year and a half ago.

the iat2 code doesnt pop up right away it takes about 2-3 start ups before it notices it. then a couple days ago i got a maf code. so hoping its just the wires.

anyone know where i could get a harness cheap? lol