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01-04-2011, 02:42 PM | #1 |
I've made a post!
Drives: 2010 Yaris 3 Door 5 Speed Join Date: Jan 2011
Location: Westchester NY
Posts: 1
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Mass Air Flow Sensor & Throttle Body Cleaning
I have a 2010 Yaris 3 door with 29,800 miles on it. I bought it into the dealership to have them check out a rough idle that I've been having and that on occasion it doesnt start if I let it sit for more than a few days. Their response was that I need to have my mass air flow sensor & throttle body cleaned out at a cost of over $100. I thought that seemed a bit odd to have the throttle body cleaned out with such low mileage and didnt think that the mass air flow sensor was something that could be cleaned. Does anyone know anything about this? Does that seem right???
Thanks Damian B |
01-04-2011, 03:29 PM | #2 |
Drives: 2007 LB Join Date: Jan 2009
Location: Nappanee, IN
Posts: 60
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I cleaned mine at around 35,000 and there was quite a bit of carbon build up on the throttle body. $100 at a dealership sounds about right I guess, but the throttle body and maf are pretty easy diy's. Your local auto parts store will have specialized cleaning spray for both. A good fuel cleaner will stretch the need to clean out, but I would think this is regular maintenance for best performance. Just my $0.02
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01-04-2011, 03:44 PM | #3 |
Drives: 06 Polar White 5dr, 13 Soul 4u Join Date: Oct 2008
Location: Georgetown, Ontario, Canada
Posts: 5,762
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01-04-2011, 04:38 PM | #4 |
Drives: Yaris HB Join Date: Jul 2007
Location: Central Alabama, GOD BLESS AMERICA
Posts: 755
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So that link covered cleaning the MAF sensor, looks to be very easy... What about the throttle body? Do I just spray instant-dry cleaning spray into the engine air inlet tube?
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01-04-2011, 08:04 PM | #5 |
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'd like to know about cleaning the throttle body too.
I'm used to removing the whole TB unit and spraying it plus a good scrubbing with a toothbrush. These newer TBs are moved by electronics, not a throttle cable. My concern is possibly damaging something or dissolving a plastic gear with the solvent. Also, when your remove the whole part, you avoid shooting all that bad stuff right into the intake manifold.
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01-08-2011, 12:13 PM | #6 |
Drives: 2008 Polar White LB Auto Join Date: Oct 2008
Location: Metro Detroit
Posts: 1,238
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ive cleaned the TB by turning the ignition to the ON position and having someone work the gas pedal. when im not able to get anyone to help, i used a brick to hold the pedal wide open so i can spray and clean it out.
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01-09-2011, 12:31 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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Intersting idea!
I was hoping to remove the thing and thus keep all that gunk from goin down the intake system....
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01-09-2011, 03:34 PM | #8 |
Banned
Drives: 07 yaris sedan Join Date: Dec 2010
Location: california
Posts: 54
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oh boy... fuel cleaner helps your MAF and/or TB.... that's a new one. Are there any other completely non-connected systems that fuel cleaner will help out with?
And yes auxmixe. You want to take it off to clean it. Change your air filter properly and neither will need cleaning... ever? (my MAF looked laboratory clean at 80,000 miles) |
01-10-2011, 12:28 PM | #9 |
Drives: 01 Toyota Echo Join Date: Oct 2010
Location: Philly
Posts: 71
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throttle body cleaning you can use deep creep without the plastic straw with the engine off and the butterfly valve temporarily opened. Use a toothbrush and a clean rag. When you got it clean, you'll never get it perfect use the remaining 1/2 can while the engine is running. Don't use the plastic straw.
Makes sure before you run it with the rubber boot off that everything is clean with no crud around that could get sucked in. Spray the contents in with the help of a buddy just above idle and with a few high revs. Wah lah you are done. |
01-10-2011, 12:38 PM | #10 |
Drives: no-longer-boosted '10 Yaris Join Date: Nov 2009
Location: Angus, Ontario
Posts: 1,891
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i did this on my moms camry recently (almost 300,000km on it) and i did it with the car running and revving to keep it alive. i couldnt believe the smoke that came out and the smell. when i do it on my car i plan to remove the intake system as all the gunk cannot be good for the engine or oil or spark plugs (which is a PITA on a camry) or exhaust or other sensors.....
i did notice the other day when checking my air filter that alot (well more then none) of dust has gotten past my filter and stuck to the side of my air box and inside the pipe.
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02-09-2011, 02:39 PM | #11 |
Drives: Yaris HB Join Date: Jul 2007
Location: Central Alabama, GOD BLESS AMERICA
Posts: 755
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I just cleaned my MAF sensor... at 85,000 and never before touched, it was still completely clean and looked brand new. Held it over white snow while spraying it with the cleaner, and the dripping "dirty" oil was still clean.
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09-23-2012, 11:00 PM | #12 | |
Drives: 2007 Yaris Hatchback Join Date: Sep 2012
Location: Pennsylvania
Posts: 12
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Quote:
-Brian |
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