Siriya Posted January 24, 2017 Share Posted January 24, 2017 Hi All, I recently through an CEL and diagnostics read it as a bad o2 sensor. Can anyone help identify the correct sensor i should look for ? All what i've found do not have the corresponding notches and longer. I've attached the image of whats installed right now in case anyone can assist. Please note the notches on the center portion of the connector. JDM MY2006. Thanks much. Link to comment Share on other sites More sharing options...
I Donated Too sigmafour Posted January 24, 2017 I Donated Too Share Posted January 24, 2017 Which CEL code did you get - Bank 1 is front O2 and Bank 2 is rear O2 I don't want to comment on the connector because of JDM - but rear O2 clips in just off the side of the gearbox case and the front O2 is up next to the engine harness coming off a bracket which is under the bolt for the rear coil back on that same side. What are you trying to do, find an O2 sensor to replace it visually by matching the connector? Link to comment Share on other sites More sharing options...
dga Posted January 24, 2017 Share Posted January 24, 2017 That's the rear O2. Your front will be on the passenger side of the motor right in front of the wheel. If I'm remembering right, it's more expensive too. Let us know what code you threw. I put a header on my car last night, pardon the bad picture, but you can see exactly where the sensor is. http://i303.photobucket.com/albums/nn141/Drazengalic/Mobile%20Uploads/20170123_190726.jpg Link to comment Share on other sites More sharing options...
MilesA Posted January 24, 2017 Share Posted January 24, 2017 OEM replacement for USDM cars is DENSO 2344732. Subaru wiring harnesses can vary. If that P/N does not fit your harness, you could simply splice the old plug onto the new O2 sensor wiring and problem solved. Link to comment Share on other sites More sharing options...
Siriya Posted January 24, 2017 Author Share Posted January 24, 2017 Thanks much; i get off in a few hours, will scan again to verify the code and update. Link to comment Share on other sites More sharing options...
Siriya Posted January 24, 2017 Author Share Posted January 24, 2017 The codes received are:- 1. P0031 - front o2 sensor heater circuit too low 2. P0134 - front o2 sensor no activity Attached is the sensor i see in the engine bay, with the connector attached. Is that the front sensor or am i missing something? Link to comment Share on other sites More sharing options...
I Donated Too sigmafour Posted January 24, 2017 I Donated Too Share Posted January 24, 2017 No that's the rear one coming up over the gearbox... Look near the main engine harness on the left side, follow the cable and if it's attached to a bracket mounted behind a coil pack (where the spark plugs go) then that's the one... it will carry down to the actual O2 sensor which is in the exhaust headers just before it mounts to the uppipe. Sadly, it's the more expensive one but people have good luck with the Denso part. EDIT: Wait... JDM RHD - Our lefts and rights might be different but look for the similar type of wire coming from the front of car, off the lower part of the exhaust and that will be your front sensor. Link to comment Share on other sites More sharing options...
MilesA Posted January 24, 2017 Share Posted January 24, 2017 If you need the front O2 sensor, that is DENSO 2349120. There are other manufacturers that make replacements, but that one is similar to OEM. There are several different tools available to pull O2 sensors - I'd suggest the TEKTON 47749 Offset Oxygen Sensor Socket or similar. The offset style socket is stronger than the other style and won't bend as easily. Fairly cheap at about $10. Easiest access I found was to remove the front wheel and go in through the wheel well. There is an access panel that will let you get to the O2 sensor location with a 3/8" extension and a short breaker bar. Wobble extensions work well if you have them. Use Kroil or similar penetrating oil liberally, and apply it several hours before you do this job. Link to comment Share on other sites More sharing options...
dga Posted January 25, 2017 Share Posted January 25, 2017 After unplugging the connector, you can slip the closed end of a box wrench over the connector and down on to the O2 sensor. Works well and with a wrench that size there is plenty of leverage. If you still can't locate it take the under tray off. Three 12mm bolts and five plastic connectors is all it takes. For the JDM one you'll see it in front and inboard of the drivers side front wheel. Link to comment Share on other sites More sharing options...
Siriya Posted January 25, 2017 Author Share Posted January 25, 2017 Alright, i'll put the car up this afternoon and see if I can trace it; looked in the engine bay near the harness as suggested but couldnt identify it. If anyone has a pic showing the area i'll have a look, otherwise it will be from bottom up. Link to comment Share on other sites More sharing options...
I Donated Too sigmafour Posted January 25, 2017 I Donated Too Share Posted January 25, 2017 well well well... three holes in the ground. I live and learn... While trying to help you more and research - I found this: http://legacygt.com/forums/showthread.php/wb-o2-sensor-ecu-dp-55787.html So it would seem your front sensor on the JDM car appears to be the one you found. I know nothing! Link to comment Share on other sites More sharing options...
dga Posted January 25, 2017 Share Posted January 25, 2017 Nice find. Technical internet help strikes again. Link to comment Share on other sites More sharing options...
MilesA Posted January 25, 2017 Share Posted January 25, 2017 JDM changes a lot of things re:front O2 sensor. Who knows what part he needs then? Link to comment Share on other sites More sharing options...
I Donated Too sigmafour Posted January 25, 2017 I Donated Too Share Posted January 25, 2017 I am not sure either because it's written in Japanese but it's the 2.0L engine and I think the O2 sensor part number MIGHT BE 22690AA370 but I can not tell for sure. (EDIT - it is not AFAIK) That said there is a DENSO part DOX-0109 and/or DOX-1446 which is listed as OE replacement against that part number but again my confidence in this market is low. (Not these parts! No... wrong... uhuh) Link to comment Share on other sites More sharing options...
I Donated Too sigmafour Posted January 25, 2017 I Donated Too Share Posted January 25, 2017 Okay. I have 22641AA042 which is a more likely part number for the 2.0L Turbo WRX/LGT motors - which is actually a Denso part made for Subaru from what I can tell. So there may be little cost savings hunting down the Denso... it has the same part number. The pictures on google images show the same plug too. I am as confident as I can be on that part number and I have some other things to do now than look up JDM part numbers. I can blame no one but myself. Link to comment Share on other sites More sharing options...
Siriya Posted January 25, 2017 Author Share Posted January 25, 2017 Great find, thanks much for the clarification. I will post the correct sensor number once i get my hands on it. Link to comment Share on other sites More sharing options...
Siriya Posted January 28, 2017 Author Share Posted January 28, 2017 Guys in case anyone needs it in the future, the JDM O2 sensor on the down pipe is 22641AA390. Only place I've found it so far is Australia. So might have to go that route. Link to comment Share on other sites More sharing options...
I Donated Too sigmafour Posted January 28, 2017 I Donated Too Share Posted January 28, 2017 good grief. Not surprised but I will say... the difference between the actual part number and the one I found (22641AA042) is the length of the cable, that and it's not yellow. The O2 sensor is the same and most importantly so it the connector. You would just need to coil up the excess cable but if you are struggling to find the actual part for the sake of the shorter length of cable...? (Or you could cut the cable and move the connector up but I wouldn't bother, that's what zip ties are for) http://g02.a.alicdn.com/kf/HTB16Ey0KFXXXXbSXpXXq6xXFXXX9/Forester-Impreza-Legacy-front-oxygen-sensor-22641-AA042-lambda-sensor-Front-O2-sensor-EGO-22641-AA042.jpg Link to comment Share on other sites More sharing options...
Siriya Posted January 29, 2017 Author Share Posted January 29, 2017 good grief. Not surprised but I will say... the difference between the actual part number and the one I found (22641AA042) is the length of the cable, that and it's not yellow. The O2 sensor is the same and most importantly so it the connector. You would just need to coil up the excess cable but if you are struggling to find the actual part for the sake of the shorter length of cable...? (Or you could cut the cable and move the connector up but I wouldn't bother, that's what zip ties are for) http://g02.a.alicdn.com/kf/HTB16Ey0KFXXXXbSXpXXq6xXFXXX9/Forester-Impreza-Legacy-front-oxygen-sensor-22641-AA042-lambda-sensor-Front-O2-sensor-EGO-22641-AA042.jpg The difference that i spotted with this one is the white portion of the connecter. It looks kind of like a capitalized 'I'. If it'd fit i'd grab it. Link to comment Share on other sites More sharing options...
I Donated Too sigmafour Posted January 29, 2017 I Donated Too Share Posted January 29, 2017 Okay. I see that... well I think it would fit since it doesn't have the I parts and electrically it is almost certainly the same... but depending on the price might not be worth the risk for you, front O2 sensors tend to be pricey. Link to comment Share on other sites More sharing options...
Siriya Posted January 30, 2017 Author Share Posted January 30, 2017 What are your thoughts on this: http://www.ebay.ca/itm/Walker-Products-O2-Oxygen-Sensor-UPSTREAM-New-for-Honda-CR-V-Element-250-54046-/371602667131?hash=item56853eb67b:g:N5cAAOSw9GhYhxnR&vxp=mtr http://www.rockauto.com/en/moreinfo.php?pk=5037042&jsn=258 Though its labelled for Honda CR-V, it looks identical to what i have both length and pin out. Link to comment Share on other sites More sharing options...
I Donated Too sigmafour Posted January 30, 2017 I Donated Too Share Posted January 30, 2017 I am not sure but if it were me, I'd be tempted to just get it and try it since your actual options are quite limited. It does look like it will work and it is the upstream sensor. If it was labeled for a Toyota I'd be more happy it will work for the Subaru - the only part that looks unfamiliar is the shape of the O2 sensor itself - but that just means it's not a Denso I guess? My only other choice would be to get a front O2 4 wire Denso and swap the plug after trimming it to length. Link to comment Share on other sites More sharing options...
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