Hello guys ,
I'm having a problem with this avalanche . It's a stock motor with nothing on it except STS turbo kit . it is making 334WHP ON 7PSI with 5.3L engine in it .
Every about 100 miles the cars power goes sharply down and it starts detonating . the MIL comes on with a code for the MASS sensor.
PO101
Any clue how can I get this code off of my back .
Cheers