I need help, I had a 04 scion xb with the K7N typhoon 69 intake on it with no problems at all worked great, But I just reacently treade in my 04 xb bsp,for a 05 2.0yellow xb. It keep giving me problems. my check engine lights always on it dosen't seem to effect the perfomance. The says that the code is to lean, K&N won't tell me anything because that haven't released a 05 intake yet ;but 4 of my friends have 05 xb's with the same intakes and no problems.....please help.

 

Double check that mass air flow sensor is connect and is in the intake correctly ... If you still have problems un-install the intake and see if the problems fix ... Also make sure you reset the ECU ... you can do this by turning the car off, then push and hold the trip button by the speed-o, while holding the trip button turn the key 2 notches till all the lights light up on the dash, then watch the - count down where the mileage is ... once all the - go away you have rest the ECU ... hope this helps!

 

Yup, yup... good advice here... ^^^

I think your computer is confused and needs to be reset OR the connection to the MAF isn't clean.