Alpine114

99 4runner, v6 5spd put a K&N in it, and a little while after, started getting check engine lights on and delayed response to the throttle. Ended up being the MAF. I had to get it replaced. ...theres talk about cleaning them, is this true?> and could i do it myself? if not, how much on avg it would cost me?

blink

yeah man, you can clean them using an electric contact cleaner... or like what i did... a little rubbing alcohol and a q-tip. At worst there are lots of people on this board and on ebay selling used ones for under 20 dollars! goodluck

kris

I have seen the oils in the K&N ruin quite a few MAF sensors. They just seem gunk them up pretty bad.

snwbrdpunk16

mine makes a weird rattling type sound when i step on it in a higher gear at lower speeds when the RPM's are down. If i clean it would the maybe help??

FilthyRich

My FIPK threw a CEL. some have no problems. I never had a problem with K&N until the 4R. Do a search for MAF cleaning and get an Amsoil air filter. When re-charging make sure to apply foam oil copnservatively.

MTL_4runner

Here you go on the MAF sensor cleaning:
http://www.4x4wire.com/toyota/mainte...tenancep5.html

Sell the K&N on eBay and get an Amsoil....too many have had K&N foul their MAFs.

Rick F.

Oiled air filter + MAF = MAF cleaning

I typically throw a CEL requiring MAF cleaning once between every clean/reoil cycle. Sometimes twice, depending on how well (or not so well) I blot the excess oil from the filter.

Gangus2006

Its because they put too much oil on the filter.

DO NOT clean it with anything touching it. Use clean (empty) airbrush, or a low powered spray gun on your air compressor. OR what I like, canned air.

FilthyRich

you are using too much oil. There is no need to saturate the filter for the oil to be effective. I would guess that continuing like that will destroy your MAF

Gangus2006

Yea really..

Dont use the squirt tip they give you. Put on a spray cap and just give it a light "dusting". Use as little as possible.

Mickdady

Probably pinging. I had the same problem. Cleaned the MAF and it went away. Ran better too!

Good time to run some seafoam through the tank and clean the throttle body while you are at it.

Rick F.

I have discussed this with my Amsoil distributor. They recommend 2 oz per sq. ft. of surface area, after which I place the filter between layers of paper towels and I literally stand on it untill no more oil blots out. Beats me...

rwmorrisonjr

That's why I went back to an OEM filter every 5-10k, no chance of MAF sensor oil contamination with it.

BTW, I have an Amsoil filter for anyone who wants it for FREE. I'll even throw in the new oil spray can I just bought.

FilthyRich

I'll take it. My buddy MAtt (localmotion) could use it. He lives near you...Real nice of you BTW

p1michaud

Would you consider shipping it to Canada? I pay shipping of course.
Cheers,
P

p1michaud

Too slow on the typing. :cry:

rwmorrisonjr

Sure, I sold a CB to Matt several weeks ago. Have him PM me and I can box it up and mail it to him. I'll clean it before I ship it.

FilthyRich

Very nice of you. I;'ll pm him now

Alpine114

Hey mlt, thanks for that site. Good stuff to know.