ThatsSplendid Posted July 15, 2014 Share Posted July 15, 2014 I recently installed exhaust on my car (up pipe downpipe and cat back). In the process of the installation the tech working on it snipped the sensor that's right in front of the up pipe. Don't ask why, I don't know either. Obviously this is throwing a code now. From my understanding the stage 2 tune with the AP eliminates codes thrown by all other o2 sensors in the exhaust. I'm just wondering if I could switch the sensor from the downpipe to the header, or if they're two completely different sensors. Really not trying to shell out the money if I don't need to. Link to comment Share on other sites More sharing options...
FJuan Posted July 15, 2014 Share Posted July 15, 2014 No they are 2 different sensors. Front sensor at UP is the Air/Fuel Ratio sensor. Rear sensor post DP is the O2 sensor. My wife's balls are delicious. Link to comment Share on other sites More sharing options...
ThatsSplendid Posted July 15, 2014 Author Share Posted July 15, 2014 So what do I need to purchase to fix this issue? Can you point me in the right direction? Link to comment Share on other sites More sharing options...
FknBoss Posted July 15, 2014 Share Posted July 15, 2014 You need an upstream and to punch that "tech" in the face and take his wallet. Link to comment Share on other sites More sharing options...
ThatsSplendid Posted July 15, 2014 Author Share Posted July 15, 2014 I definitely wanted to. I'm having a hard time understanding why he would snip it. Where could I find one for a good price? Link to comment Share on other sites More sharing options...
FknBoss Posted July 15, 2014 Share Posted July 15, 2014 Their all pretty expensive. Stick with a denso. 234-9120 should be the part number you need. Link to comment Share on other sites More sharing options...
ThatsSplendid Posted July 15, 2014 Author Share Posted July 15, 2014 Thank you very much Link to comment Share on other sites More sharing options...
Moderators BarManBean Posted July 15, 2014 Moderators Share Posted July 15, 2014 You can grab one from advance auto. Order online and use a promo code and it should be under $100. I honestly don't know why the tech / shop wouldn't be paying for this though... "Bullet-proof" your OEM TMIC! <<Buy your kit here>> Not currently in stock Link to comment Share on other sites More sharing options...
FknBoss Posted July 15, 2014 Share Posted July 15, 2014 Of that's the number you need here's one on ebay.http://m.ebay.com/itm/171285215991?nav=SEARCH Link to comment Share on other sites More sharing options...
Moderators BarManBean Posted July 15, 2014 Moderators Share Posted July 15, 2014 $122.99 here: http://shop.advanceautoparts.com/p/denso-air-fuel-sensor-direct-fit-234-9120/20475116-P?searchTerm=denso+234-9120 Use coupon code TRT41 for $40 off. "Bullet-proof" your OEM TMIC! <<Buy your kit here>> Not currently in stock Link to comment Share on other sites More sharing options...
FJuan Posted July 15, 2014 Share Posted July 15, 2014 Damn that's cheap. Otherwise, if you want stock OEM here's a link. http://www.ebay.com/itm/2005-2009-Subaru-Legacy-Air-Fuel-Ratio-Oxygen-Sensor-OEM-NEW-Genuine-/190868008595?pt=Motors_Car_Truck_Parts_Accessories&fits=Year%3A2005%7CMake%3ASubaru%7CModel%3ALegacy%7CSubmodel%3AGT&hash=item2c709eae93&vxp=mtr My wife's balls are delicious. Link to comment Share on other sites More sharing options...
Max Capacity Posted July 15, 2014 Share Posted July 15, 2014 FWIW, A oem will last longer, my after market lasted two years. 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
FknBoss Posted July 15, 2014 Share Posted July 15, 2014 Oem should be a denso.. subaru just put a yellow sheething on it. Link to comment Share on other sites More sharing options...
ThatsSplendid Posted July 16, 2014 Author Share Posted July 16, 2014 Thanks for everything you guys. I would have ended up spending much more if it weren't for you. Link to comment Share on other sites More sharing options...
Max Capacity Posted July 16, 2014 Share Posted July 16, 2014 Thanks for everything you guys. I would have ended up spending much more if it weren't for you. That's splendid, glad we could help. 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
Merc6 Posted July 17, 2014 Share Posted July 17, 2014 Why are you spending anything for the guy deliberately cutting emissions off your car? 2005 Satin White Pearl Subaru Legacy 2.5 GT Unlimited 5EAT (Project Car) 2019 Agate Black Ford Explorer XLT 4WD (DD) Link to comment Share on other sites More sharing options...
Akasa Posted July 17, 2014 Share Posted July 17, 2014 OP, if it helps at all, even though it appears i'm a bit late to the game... I can confirm that the Denso 234-9120 is an exact replacement for OEM, having just replaced my AFR sensor. (Manifold) That being said, as stated above, the front is technically an AFR sensor, the rear is an oxygen sensor. Here's an Amazon link. [ame=http://www.amazon.com/Denso-234-9120-Oxygen-Sensor-Ratio/product-reviews/B001F799X6]http://www.amazon.com/Denso-234-9120-Oxygen-Sensor-Ratio/product-reviews/B001F799X6[/ame] Link to comment Share on other sites More sharing options...
ragman Posted October 21, 2014 Share Posted October 21, 2014 $122.99 here: http://shop.advanceautoparts.com/p/denso-air-fuel-sensor-direct-fit-234-9120/20475116-P?searchTerm=denso+234-9120 Use coupon code TRT41 for $40 off. Thanks man! Code still works. Hoping to resolve my P0031 code I got yesterday. $89 total picked up, not too bad Link to comment Share on other sites More sharing options...
Merc6 Posted October 28, 2014 Share Posted October 28, 2014 Thanks man! Code still works. Hoping to resolve my P0031 code I got yesterday. $89 total picked up, not too bad I'll keep it in mind, I may as well grab one since mine is about 5 years old and could possibly go right after the build is complete. 2005 Satin White Pearl Subaru Legacy 2.5 GT Unlimited 5EAT (Project Car) 2019 Agate Black Ford Explorer XLT 4WD (DD) Link to comment Share on other sites More sharing options...
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