View Full Version : air intake, check engine light

01-21-2007, 04:25 AM
I installed a K&N air intake on my 00 Celica GTS and my check engine light came on. I took it to the dealer ship and the said i should drill a hole in the intake and attach a tube from there to the vacuum switch? Ne other ideas of what could be wrong?

01-21-2007, 05:21 AM
What was the code?

The oil from the K&N MIGHT have gotten onto the MAF sensor.

They tend to dirty anyways.

01-23-2007, 01:59 AM
u do have the Mass Air Flow sensor and Air Temp sensor installed right?

91 celica st
01-23-2007, 04:51 AM
dont use a k&n filter with maf the oil and fibers will get on it and ruin it, use one thats not oil based