I spent a day at the deal letting a tech look at it. My car is not putting out any boost except wastagte pressure(5-7psi). At first i didnt throw a cell while driving around. Then a couple miles later i thre P0171 (system too lean; bank 1). the tech changed my af sensor and reset the ecu so im guess that is way it worked for a little while. My light came on again but still p ulled full boost(13 psi) for about 50 miles and then it cut boost and all i had was wg pressure. I change from the stock BPV to my VTA BOV and went and drove it around. The boost came back but the light stayed on. about 25 miles after with BOV still on, It cut boost again and that is where im at.

02 wrx
K&N typhoon Cold Air intake
BOV
Catless up and down pipe
HKS high power exhaust



the tech said it could be because i have no back pressure whatsoever.. is this true sinc ei have a free flowing exhaust?

 

no

you have problems, something is wrong and your ecu is pulling the boost

The tech replaced the front 02 to make the lean go away.

but it didnt work so now there is the list of MAF and other sensors

or a vaccumme leak

 

i cleaned my maf and they all went away.. now its a week later and i am getting p0139 ckt slow response.. bank 1 sensor 2..