Extremely Lean Air/fuel Mix

[TORONTOTALON]

I have a 1g 2.0 n/t and my air fuel mix is very lean i no this because i pulled my plugs and they are white and my e test failed because of high NO gas and the is caused by lean air fuel mix i was wondering if neone has any quick guess at what it could b

things i have done
fuel injecter flush (actual one the u hook up to the rail)
replaced mas
repleaced spark plugs
air filter

p.s the car feels like it runs great but with power loss i dunno what this could be

 

[versatilx1]

Could be a failing sensor, fuel filter, pump, preturbo/post mas intake leak, to name a couple. But be sure its a real problem before you go trying to fix it. A logger would be nice.

 

[versatilx1]

scratch that turbo part off sorry i was doing something else too this also applys for you as well

 

[TORONTOTALON]

i have no check engine light and i just replaced the fuel filter not to long ago

what sensor on the motor could make such an impact on the air fuel mix

 

[versatilx1]

i have no check engine light and i just replaced the fuel filter not to long ago

what sensor on the motor could make such an impact on the air fuel mix

well see if the sensors were a problem the check engine light would come on, a sensor that could actual confuse it would be your air flow sensor,air temparture sensor, and barometric pressure sensor.now listen this is a MAYBE not a for sure answer to your question but ill do some more reading up and see what i get.