[TavuL iQ]

2012 Scion iQ with ~50K miles. Only modification is a K&N oem replacement filter. Oil is in good condition, I cleaned the TPS and I have no CEL or Traction warnings dash is clear. Any idea of what could this be??? I'm afraid it could be a transmission issue...

 

[nightclub]

i am afraid

 

[TavuL iQ]

Your afraid of?

 

[IQMY]

i would suggest change the transmission oil ..

 

[jzchen]

I just installed a K&N filter in mine. I noticed the original filter is thicker towards the front of the car, and thin towards the rear. I had to take some time to figure out how to orient the K&N the proper way. There are two rectangular notches in both filters that line up with notched areas towards the front and anatomical left. So the thicker side of the K&N actually faces the rear. I would check the MAF sensor to see if it is gunked up, and verify the filter is oriented properly so no debris get through.

If you have re-oiled yours there is concern of over oiling, and oil may have gotten onto the MAF. I use the aerosol spray oil and weigh it before and after oiling to get the proper amount of oil and a more decent distribution/spread. The correct oil amount is on the box, and is also conveniently listed on the specs page of the filter on the K&N site.

 

[jzchen]

BTW-. Used to be that K&N had a million mile warranty. Seems like they inserted 10-YEAR/Million Mile Limited Warranty. When did the 10-Year come into play? Useless for me considering how long I keep a car....

 

[nis350]

my personal opinion is that the K&N filter does more harm than good.

I just installed a K&N filter in mine. I noticed the original filter is thicker towards the front of the car, and thin towards the rear. I had to take some time to figure out how to orient the K&N the proper way. There are two rectangular notches in both filters that line up with notched areas towards the front and anatomical left. So the thicker side of the K&N actually faces the rear. I would check the MAF sensor to see if it is gunked up, and verify the filter is oriented properly so no debris get through.

If you have re-oiled yours there is concern of over oiling, and oil may have gotten onto the MAF. I use the aerosol spray oil and weigh it before and after oiling to get the proper amount of oil and a more decent distribution/spread. The correct oil amount is on the box, and is also conveniently listed on the specs page of the filter on the K&N site.

 

[jzchen]

Whenever it's time to change the air filter, I first look for a CARB EO#ed intake. Then I look for a dry/synthetic filter. Lastly, I'll look for a K&N. I have read of stories that turbos got damaged due to dust passing through. I notice that K&N has recently backed their filters with a performance type warranty, that if the damage was caused because of using their filter, they would help address the issue and help with repair cost.

My wife's C-MAX Energi has one, and the iQ now has one. I had installed one in an '85 Mercedes 300D. They seem to breathe better after installation. (I notice less engine roar/noise). Whether the decreased filtration efficiency is causing harm, I haven't reached a point where I can determine that....

 

[Artiphx]

I just installed a K&N filter in mine. I noticed the original filter is thicker towards the front of the car, and thin towards the rear. I had to take some time to figure out how to orient the K&N the proper way. There are two rectangular notches in both filters that line up with notched areas towards the front and anatomical left. So the thicker side of the K&N actually faces the rear. I would check the MAF sensor to see if it is gunked up, and verify the filter is oriented properly so no debris get through.

If you have re-oiled yours there is concern of over oiling, and oil may have gotten onto the MAF. I use the aerosol spray oil and weigh it before and after oiling to get the proper amount of oil and a more decent distribution/spread. The correct oil amount is on the box, and is also conveniently listed on the specs page of the filter on the K&N site.

K&N 33-2486
This filter is smaller and angled than oem
Do i have the correct one?

 

[jzchen]

K&N 33-2486
This filter is smaller and angled than oem
Do i have the correct one?

I checked K&N website and that's the correct part number for 1.3 L and 1.0 L gas engines. For some reason it doesn't show a filter for the 1.4 L diesel. The height may be different, but length and width should match exactly? Those dimensions should be exactly the same otherwise won't make a good seal.

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[jzchen]

Found this:

2009 - 2016 Urban Cruiser, iQ, Yaris, Verso S and Trezia 1.4L Get Performance Air Filter

Replacement Air Filter for select 2009-2016 Toyota and Subaru 1.4L diesels Some may wonder how vehicle manufacturers come up with the model names for the vehicles they produce. It is an entertaining thought. Do they write names on flash card, throw them

www.knfilters.com

K&N part # 33-2988 is for the 1.4 L diesel.

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