Oxygen Sensor Replacement

mcqueen · November 10th, 2009, 12:57 AM

So I've known for a while that I had a bad O2 sensor but I kept putting off replacing it until now (the stang is blowin through gas). I went to Advanced Auto to get the code pulled and it came up as P1131 (the dumbass working there claimed it wasn't a bad O2 sensor so I didn't pick one up tonight but I did my research and sure enough it is). So it's the bank 1 upstream O2 sensor that I need to replace. But I'm not totally sure where the upstream O2 sensors are located. I know bank 1 is passenger side, I just don't know where to start looking for the sensor

atlanticblue98 · November 10th, 2009, 01:05 AM

Originally Posted by mcqueen

So I've known for a while that I had a bad O2 sensor but I kept putting off replacing it until now (the stang is blowin through gas). I went to Advanced Auto to get the code pulled and it came up as P1131 (the dumbass working there claimed it wasn't a bad O2 sensor so I didn't pick one up tonight but I did my research and sure enough it is). So it's the bank 1 upstream O2 sensor that I need to replace. But I'm not totally sure where the upstream O2 sensors are located. I know bank 1 is passenger side, I just don't know where to start looking for the sensor

the upstream sensor is the sensor closest to your header/manifold before the catalytic converters. you will need an O2 sensor socket to get it on and off.

mcqueen · November 10th, 2009, 01:12 AM

No chance a wrench will work?

atlanticblue98 · November 10th, 2009, 01:18 AM

Originally Posted by mcqueen

No chance a wrench will work?

maybe, if you have a 7/8" boxed end wrench. it is in a awkward position.

mcqueen · November 10th, 2009, 01:27 AM

Alright thanks. Hopefully I'll get this bad boy changed here soon

elgrenas · November 12th, 2009, 04:35 PM

Originally Posted by mcqueen

Alright thanks. Hopefully I'll get this bad boy changed here soon

Good luck i just got both my oxygen sensors changed, cause i tried the 02 sensor tool and 7/8 wrench. i nearly went crazy

trying to do it on my own. i had a buddy of mine do it with an impact gun. we broke the old sensor tip of and thats the only way he got the bad boy to come of

RFM 40th V6 · November 12th, 2009, 05:18 PM

Just to let you know. That one is a complete pain in the ass if you're doing it on car.

Also the connector is hard to get to.

stephen · November 12th, 2009, 06:11 PM

The way I did it was to disconnect the connectors for both front sensors and unbolt the converter assembly from the manifolds to let it drop down. Then a 22mm box wrench and some tapping on the wrench handle with a hammer will get it loose. The new sensor should come with some high temperature anti seize.

ByPopularDemand · November 13th, 2009, 04:07 PM

Its not that hard...ive done mine quite a few times

November 10th, 2009, 12:57 AM	#1
mcqueen MM's Official Drunk Join Date: Oct 2009 Location: Ozark, MO Posts: 14,559 iTrader: 0 reviews	Oxygen Sensor Replacement So I've known for a while that I had a bad O2 sensor but I kept putting off replacing it until now (the stang is blowin through gas). I went to Advanced Auto to get the code pulled and it came up as P1131 (the dumbass working there claimed it wasn't a bad O2 sensor so I didn't pick one up tonight but I did my research and sure enough it is). So it's the bank 1 upstream O2 sensor that I need to replace. But I'm not totally sure where the upstream O2 sensors are located. I know bank 1 is passenger side, I just don't know where to start looking for the sensor

November 13th, 2009, 04:07 PM	#9
ByPopularDemand Hardcore Enthusiast 2000 V6 Join Date: Jan 2007 Location: Albuquerque Posts: 2,670 iTrader: 0 reviews	Its not that hard...ive done mine quite a few times __________________ 2000 V6 vert Mac LT headers, Mac O/R H-pipe, Mac CAI, ASP 25% underdrive pulley(r.i.p), SCT tune, 8.8 rear and 4.10 gears.

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November 10th, 2009, 01:12 AM	#3
mcqueen MM's Official Drunk Join Date: Oct 2009 Location: Ozark, MO Posts: 14,559 iTrader: 0 reviews	No chance a wrench will work?

November 10th, 2009, 01:27 AM	#5
mcqueen MM's Official Drunk Join Date: Oct 2009 Location: Ozark, MO Posts: 14,559 iTrader: 0 reviews	Alright thanks. Hopefully I'll get this bad boy changed here soon

November 12th, 2009, 06:11 PM	#8
stephen Hardcore Enthusiast Join Date: Feb 2007 Posts: 1,182 iTrader: 0 reviews	The way I did it was to disconnect the connectors for both front sensors and unbolt the converter assembly from the manifolds to let it drop down. Then a 22mm box wrench and some tapping on the wrench handle with a hammer will get it loose. The new sensor should come with some high temperature anti seize.

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