Engine K&N Air Filter turned my check engine light on

K&N Air Filter turned my check engine light on

I bought a K&N air filter for my 01 Corolla. My check engine light came on and I got a lean code from a dirty MAF caused from the oil on the K&N air filters. I highly do not recommend this filter because it is worth more trouble than it is worth.

the good ol p0171... see this weekly. thats no biggy. simple clean of the air flow sensor will fix it. how is cleaning it every so often more trouble then its worth? just like any modification. there may be drawbacks

never heard? very known problem in the auto business. i have used k&n, S&B, green, ITG and several others. the rolla has only had the k&n for a day so i wouldn't know yet.

on my focus i ran volant, k&n that came with my pro-m maf, ice-man's high flow panel, and pipercross' foam induction (best i've ever used)

my ranger had s&b
countour had K&n
now my 05 dakota uses a k&n... on EVERY car i've owned i have had to clean the maf.

usually pepole make mods to thier cars to make a drawfoward not a drawback. kinda defeats the purpose. if your only going back. the goal is to move foward or in this case to move. without any problems JMO

How long did you have it in there before you experienced any problems?

i have never used a K&N air filter. but i know alot of folks who have. i feel that if ferrari,maserati and orther high end mfg don't use them why should I. keep in mind the orther high end mfg's can use the best filters avaliable and most of them don't use K&N they use paper. must tell you something. things that make say hummm.

I have never heard of such a problem before.