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Old 04-29-2002, 03:56 PM   #1
ossie_ostrich
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Member#: 18184
Join Date: Apr 2002
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1999 Impreza OBS
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Question air flow meter/MAS sensor...DIY??

I have been informed I have a faulty airflow sensor on my Impreza Outback Sport. Which would explain my recent bad fuel mileage......

I am considering replacing this part my self, I am not a mechanic but am handy. I can pay for the replacement price through a Subaru dealer ($420) but would like to do it myself if at all possible-for the experience as well as the money savings......

Please share any suggestions and or experiences.

Thanks in advance.

ossie
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Old 04-29-2002, 04:07 PM   #2
noahr
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try and source the part through a junkyard. you should be able to save alot of money this way. replacing it as far as i know is as simple as unpluging it, unbolting it from the airbox (if you have one), disconnecting it from the intake tubing, and bolting the new one in. good luck!
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Old 04-29-2002, 04:52 PM   #3
jetfan8178
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Default Re: air flow meter/MAS sensor...DIY??

Quote:
Originally posted by ossie_ostrich
I have been informed I have a faulty airflow sensor on my Impreza Outback Sport. Which would explain my recent bad fuel mileage......

I am considering replacing this part my self, I am not a mechanic but am handy. I can pay for the replacement price through a Subaru dealer ($420) but would like to do it myself if at all possible-for the experience as well as the money savings......

Please share any suggestions and or experiences.

Thanks in advance.

ossie
Get me a part number.I may be able to save you some $$$ on the parts.New from a dealer of coarse.
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Old 04-30-2002, 01:43 PM   #4
ossie_ostrich
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For anyone interested.....I just got a call from the dealer saying you can simply buy the sensor and not the whole attachment. Price for whole attachment is 320 (parts only) price for sensor only $75.......big saving!!

Unfort. dont have a part number as yet.....
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Old 04-30-2002, 09:05 PM   #5
EvasionOfTruth
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Default 2001 Mitchell Collision Estimating & Reference Guide

Okay I have these part numbers:

For 93 to 98 - 22680AA160 (Air Flow Meter)
Priced at 270.83 on subaruparts.com
Priced in book for 355.42

For 99 - 22680AA290 (Air Flow Meter)
Priced at 243.80 on subaruparts.com
Priced in book for 309.45

Doesn't have any listings for just the sensor. This book is more than detailed every nut and bolt you could want. But still didn't see the sensor seperate

Buster
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Old 05-01-2002, 06:31 AM   #6
steppin16
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yeah i was wondering about that... i see where it comes out...Please look harder for just the sensor number... us 99'ers are running out of money having to pay 500 a year or so
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Old 05-01-2002, 07:58 AM   #7
Revision
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You may have to source the dinking things straight from Bosch.
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Old 05-01-2002, 01:08 PM   #8
ossie_ostrich
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Default PART NUMBER FOR SENSOR ALONE

I called my dealer and got the part number for the sensor alone.

#22794AA000 Price approx $75.

cheers.
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Old 05-01-2002, 05:44 PM   #9
steppin16
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trying to get a hold of a dealer to just make sure this will work... I hope to god it does... and that is only 45 on subaruparts.com
My friend has blown 4 for a total of 1500 where it would only cost 200 with this... this is crazy.
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Old 05-03-2002, 12:08 PM   #10
vvk
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Default Interesting

The whole idea of replacing just the hot-wire sensor and not the complete air mass meter assembly sounds a little fishy. It would be extremely nice if it was possible, though.

The reason I say it sounds strange is that I know many cases of people getting their whole air mass meter assemplies replaced under warranty instead of just the sensor part. I am sure Subaru realises that $75 is less than $400 and they would not authorise replacing the more expensive part.

Also, keep in mind that pre-1999 sensor is very different than the 1999 sensor (2000 uses MAP sensor instead). The pre-1999 air mass meter is much sturdier and does not fail nearly as often.

Is part 22794AA000 for 1999 Impreza or pre-1999 Impreza?

Also, keep in mind that while swapping out the whole assembly is super-easy, rebuilding it with a new sensor may not be for a beginner DIY mechanic. The sensor is extremely delicate and any mishandling will surely ruin it. So be careful.
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Old 05-04-2002, 02:15 AM   #11
steppin16
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(in a non rude voice) have you seen the sensor? the part that they sell is a tube with a "probe" going into it, the "probe " is attached to the tube. I am under the impression that this part number is for the "probe". I may be wrong, but would they just sell the hot wire sensor, (im thinking about this wicked small little wire at the end of the probe almost invisable)???
just adding my idea of what this is!!!
another thing is, is anyone sure subaru even replaces the whole tube when they warrenty it??? maybe it is something they just do when we pay. again just thinking
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Old 05-11-2002, 10:50 PM   #12
Peaty
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Revison got that part number and put it in his 99RS and AFAIK it's working. I'd like to verify that it is the correct PN for a 99 though. ossie_ostrich is it working OK?

I put up some info on the swap out here:

http://www.scoobymods.com/forums/sho...id=887#post887

Thanks goes to Revision for the Pics.

Peaty

www.Scoobymods.com
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Old 05-12-2002, 03:56 PM   #13
EvasionOfTruth
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Default Re: 2001 Mitchell Collision Estimating & Reference Guide

Quote:
Originally posted by EvasionOfTruth
Okay I have these part numbers:

For 93 to 98 - 22680AA160 (Air Flow Meter)
Priced at 270.83 on subaruparts.com
Priced in book for 355.42

For 99 - 22680AA290 (Air Flow Meter)
Priced at 243.80 on subaruparts.com
Priced in book for 309.45

Doesn't have any listings for just the sensor. This book is more than detailed every nut and bolt you could want. But still didn't see the sensor seperate

Buster

Darn, Revision got all of the credit

Buster
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Old 05-12-2002, 04:04 PM   #14
Peaty
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I rectified the post, sorry about that. Check the link again
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Old 05-12-2002, 05:19 PM   #15
EvasionOfTruth
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Lol...Thanks Peaty. If you need any part numbers shoot me a pm or email. I'm thinking of doing a spread sheet of all of them or once I get a new scanner just scanning all of it in. I have them all for the GDA's and GC8's.

Buster
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Old 05-12-2002, 05:40 PM   #16
Peaty
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Buster,

We'd love to host the numbers on our site if you need a place to put them

Can you verify that the number in question is in fact for a 99 MY Do you have the one for a 98? That would be some good info for that page.

Peaty
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Old 05-12-2002, 07:02 PM   #17
EvasionOfTruth
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WRB SPB Edition

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Quote:
Originally posted by Peaty
Buster,

We'd love to host the numbers on our site if you need a place to put them

Can you verify that the number in question is in fact for a 99 MY Do you have the one for a 98? That would be some good info for that page.

Peaty
Hey Peaty/guys....
The number I have listed for the 99 is the whole unit. Unfortunately it doesn't show the sensor alone. The 98 is listed with the 93-98.

Since my scanner is out of commission I took some digital pics of the pages and items described above. I apologize for the size and quality. I'll have better pics once I get a new scanner.

93-98 Sedan, Coupe, Wagon, Outback 1.8mb
99-00 Coupe 2.5mb
99 2.2L w/California emissions and without 4.1mb

Peaty....feel free to use those images, any editing to make them look better is cool too. Once I get a new scanner I will get some better pics for ya.

Buster
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