Badd grinding noise
 

so my cars still in limp mode,the only code I get is p0332 (knock sensor 2 input to low)does this mean I need a new knock sensor?Also lately when I hit about 4800-5000rpm my turbo makes a loud grinding noise,but it only does it about 50% of the time.Any suggestions on what this could be?

thanks

RE: Badd grinding noise
 

I also notice that if i rev out the car while its in limp mode,it comes out of limp mode for a while, but then goes back in.

RE: Badd grinding noise
 

Sounds like your turbo is on its way out.

RE: Badd grinding noise
 

does your turbo sound like a dentist drill? how much boost are yoo making? does it feel like you have no power in the high rpm's? if so your turbo may be done

RE: Badd grinding noise
 

yeahh it sounds like a drill real bad,but it only does it at higher rpms,and im not sure about how much boost im making because im always in limp mode because of the knock sensor