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04-20-2012, 02:24 PM | #1 |
Drives: yaris Join Date: Apr 2012
Location: O-side, Ca
Posts: 2
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filter on top of air box
wondering if removing the factory built in air filter on the top of air box will help my milage or possibly hurt the engine?
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04-20-2012, 02:30 PM | #2 |
Drives: 06 Polar White 5dr, 13 Soul 4u Join Date: Oct 2008
Location: Georgetown, Ontario, Canada
Posts: 5,762
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Slight improvement to f/e.
However, that upper filter is a CARB requirement. Being in Cali, I'm not sure you'd pass inspection with it removed. From what I understand, inspection is a pretty anal issue down there.
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04-22-2012, 10:28 AM | #3 |
Nothing beats a Toyota!
Drives: 2013 Yaris 5 dr liftback Join Date: Jan 2009
Location: Indianapolis, Indiana
Posts: 564
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Do you mean the filter that is behind the passenger side bottom glove box?
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Big Dave Indianapolis, IN Synthetic Oil....its in my car.....for at least 10,000 miles! |
04-22-2012, 10:51 AM | #4 |
Drives: 06 Polar White 5dr, 13 Soul 4u Join Date: Oct 2008
Location: Georgetown, Ontario, Canada
Posts: 5,762
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No. In the air intake there are two filters. A white fiber filter that sits on the lower portion of the air box, and a permanently affixed black charcoal filter attached to the upper part. He is talking about the charcoal filter.
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04-22-2012, 12:31 PM | #5 |
Nothing beats a Toyota!
Drives: 2013 Yaris 5 dr liftback Join Date: Jan 2009
Location: Indianapolis, Indiana
Posts: 564
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So if you remove the carbon filter you get better mileage?
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Big Dave Indianapolis, IN Synthetic Oil....its in my car.....for at least 10,000 miles! |
04-22-2012, 01:30 PM | #6 |
Drives: yaris Join Date: Apr 2012
Location: O-side, Ca
Posts: 2
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yes the black carbon filter, its looks like its quite air restrictive.
iam wondering how the smog police would know i removed it and if the engine would still run properly? |
04-22-2012, 03:53 PM | #7 |
Drives: 2008 HB, A/T, Power W/L/M Join Date: Oct 2008
Location: LI, New Yawk
Posts: 2,063
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I'm guessing it's just to hold in fuel vapors after the engine shuts down. Mabye without it there would be a gas smell....
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04-26-2012, 01:47 PM | #8 |
Drives: Black XA not yaris but close Join Date: Jun 2009
Location: DFW
Posts: 48
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I pulled mine out of my Xa, big improvement in flow. Very noticable at the top of the rpm range. I broke it pulling it, you can dremel it out carefully and be able to put it back. It blocks noise as well, so now there is more of a growl out of the front. No gas fumes noticed. Not sure on MPG. I know it did not go down.
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04-26-2012, 02:13 PM | #9 |
Drives: 2010 black yaris Join Date: Oct 2010
Location: savannah, ga
Posts: 2,868
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pulled mine out also.. mine was easily pulled off.. no damage.
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-Derrick- "Racing is important to men who do it well. When you're racing... It's life. Anything that happens before or after, is just waiting." |
04-26-2012, 04:47 PM | #10 |
Nothing beats a Toyota!
Drives: 2013 Yaris 5 dr liftback Join Date: Jan 2009
Location: Indianapolis, Indiana
Posts: 564
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The Obama EPA will crucify you for that. You have admitted publicly to defiling a clean air system. You will be punished for your sin!
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Big Dave Indianapolis, IN Synthetic Oil....its in my car.....for at least 10,000 miles! |
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