Hi i noticed my turbo was not spooling and my performance sucked, so i ran to buy a OBD II code reader. I found out 2 codes along with a CEL code..
[ol][*]P0102 - MAF or VAF a Circuit Low Input[*]P0171 - System Too Lean (Bank 1)
[/ol]Car is stock except a K&N Cone filter mod. she has abotu 106k on her and everything is fine except a ABS light. Any help would be grateful!

 

102 Mass flow sensor. Check the wiring and check to see that connections are tight and that there is no leak in the intake system. You might try to clean the MAF with some spray alcohol. Over oiling the K&N is said to kill your MAF.

171 Can be caused by MAF issue

 

thanks, ill try that tomorrow and erase the codes.