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Old 01-14-2010, 08:06 PM   #1
XENONSVX
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Default EJ20K MAF options

So the MAF on my EJ20K is toast, need a new one. It's very large, orange sticker, the numbers on it are E 22680 aa271

So far I've come up with a few options.

1: Find an exact replacement (good luck)

2: Find out if the electronics are the same as another subaru and swap tubes (anyone know?)

3: I have a 2002 WRX ecu, harness, and motor with a cracked block, swap all that stuff over, run the 20K of the 02 ECU. Nice thought with the 02 ecu is being able to flash it from my laptop.

4: Anyone find a way to tune the ej20k ecu so I can put a whatever I want MAF on there. Not really interested in buying a Power FC unless it can be had for cheap, sucky economy and all :-(

5: ??? Open to suggestions.
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Old 01-14-2010, 10:04 PM   #2
jay_parot
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if im not mistaken the Q45 has a lil bit larger if not same MAF and it work on a subi .
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Old 01-14-2010, 10:19 PM   #3
XENONSVX
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Quote:
Originally Posted by jay_parot View Post
if im not mistaken the Q45 has a lil bit larger if not same MAF and it work on a subi .
I've been trying to find more information on that. All I can see is that I might have to wire in the connector. Not sure if I'd have to rescale it, or if the flow curve is the same...
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Old 01-14-2010, 10:30 PM   #4
jay_parot
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here in CHILE i have seeing a few guys using that maf and the one fron the nissan 300Z , like i said b4 im not sure what they did to use it ...... sorry cant help you more thou
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Old 01-14-2010, 10:35 PM   #5
dr3w
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^ You need a stand alone (ex: power fc) to be able to use an other maf like the OP said he doesn't want to do this though.
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Old 01-15-2010, 07:17 AM   #6
DuoMaxwell
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Old 01-15-2010, 08:51 AM   #7
XENONSVX
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Yeah, I've seen the overseas auctions, rather find someone in the states with one, at least that way if the part I get is all wacked out I can deal with someone in the same country haha

I think I'm going to hit the junk yard this weekend and find a few different MAFs, take them apart and see if the electronics are the same. If that's the case I'll just swap the element and what not into my giant MAF tube. Correct me if I'm wrong, but isn't enlarging the flow tube and keeping the same sensor a way of flowing more air with the same reading? Perhaps that was done with these? Seams odd with how compatible everything else is on subaru that 1 MAF would just be so crazy special. Anyone ever have an orange meter on a flow bench? Be nice to know what the factory curve is for my little experiment.
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Old 01-16-2010, 06:09 PM   #8
maurizio
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i had a hard time finding a MAF myself
best of luck on your hunt
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Old 01-16-2010, 08:23 PM   #9
elislider
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theres a few ppl on here that either are in Japan or know how to navigate the yahoo japan auctions and could buy one for you
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Old 01-17-2010, 01:58 AM   #10
Marnix
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I use this, Japan Auction Centre and I've received two shipments from them so far, they are great. Please be aware that postage/freight for sending large and/or heavy items can be very expensive!

At the moment there are at least two auctions for MAFs, use this link to get to Subaru engine parts on Yahoo and then search for エアフロ (airflow).

Last edited by Marnix; 01-17-2010 at 02:01 AM. Reason: Added search link.
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Old 01-17-2010, 11:27 AM   #11
Jaxx
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did you put the part number in the us system to see if its available?


edit : guess you didn't its $237.70
https://www.chaplinssubarugenuinepar...parts_cat.html
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Old 01-17-2010, 11:33 AM   #12
XENONSVX
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Quote:
Originally Posted by Jaxx View Post
did you put the part number in the us system to see if its available?


edit : guess you didn't its $237.70
https://www.chaplinssubarugenuinepar...parts_cat.html
Thats great. Thanks! Whenever I goto the dealer for stuff they always look at me like I'm crazy and say they cant get it. haha I'll try on Monday.

Out of curiosity, is there a way to check my ECU number to make sure it is the correct MAF?
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Old 01-17-2010, 11:56 AM   #13
Marnix
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Wow, amazing. I can even order that one here in Europe. Although it is a JDM uniqua part.
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Old 01-17-2010, 01:36 PM   #14
Jaxx
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honestly i wouldn't even bother with your dealer, you might very well get the "your crazy look"
the above link is where subiegal works
and there prices are very very good
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Old 01-17-2010, 03:59 PM   #15
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I have one at work.
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Old 01-17-2010, 04:34 PM   #16
XENONSVX
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Quote:
Originally Posted by Jaxx View Post
honestly i wouldn't even bother with your dealer, you might very well get the "your crazy look"
the above link is where subiegal works
and there prices are very very good
haha well the dealer I work for has several different car lines, one of them being Subaru. They were quite amazed when I plugged this thing into the select monitor with the 97' cartridge and it came up 2.0 turbo. It can just be a hassle some of the times getting the parts guy to go "above and beyond"

I'll be looking into that MAF on Monday, hopefully that fixes my issues.
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Old 01-17-2010, 11:01 PM   #17
Cbgrandtheftauto
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The Q45 and jdm 20k have the same 90mm size...I have never messed with a q45 to find out the scaling...the euro 20k has a 80mm maf with a plastic housing around the sensor...it's basically the wrx maf...Jaxx that link doesn't go to a maf...it just goes to the part select screen...did you find the 20k maf on there??
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Old 01-18-2010, 10:12 PM   #18
XENONSVX
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Well checked stock, found out there are 10 left in the US, so I ordered one up, should be here on Wed.
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Old 01-19-2010, 10:06 AM   #19
Jaxx
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you have to cut and past the part number in post #1
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Old 01-21-2010, 09:55 PM   #20
XENONSVX
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Just wanted to say the new MAF showed up today, put it in, car runs great again

Thanks for the help
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Old 01-22-2010, 03:14 AM   #21
elislider
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Quote:
Originally Posted by XENONSVX View Post
Well checked stock, found out there are 10 left in the US, so I ordered one up, should be here on Wed.
where did you find it? and how much?
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Old 01-22-2010, 08:02 AM   #22
Marnix
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Any dealer. And online with Subiegal.
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Old 12-18-2011, 07:11 PM   #23
subierick
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Hey I have one for sale if anyone still wants it!
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Old 01-04-2012, 08:45 PM   #24
Gmilos
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I used a 92 leg turbo maf plus the connector ($20 at junk yard), if you are using the 20k harness, check diagram 3 wires :constant volts, signal and ground. The 92 leg had a 5 pin connector with only 4 wires, two of which being grounds, splice the grounds together(they are the two wires in the middle of the connector)

Get your wires tagged on your harness snip off connector
Solder sensor wire to sensor wire
Solder harness ground to the TWO connector grounds
Solder constant voltage to constant voltage.

Plug in and go go go
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Old 01-04-2012, 08:46 PM   #25
Gmilos
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Woops
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