P0135 O2 sensor

Technical info on the Pontiac Vibe and Toyota Matrix including do-it-yourself info
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Mellob75
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P0135 O2 sensor

Post by Mellob75 » Sat Aug 18, 2012 1:47 pm

Ok, I have read all of the other posts about this code but have not seen my problem. I have replaced the correct sensor and the check engine light has not reset itself. Does anyone know of any other issues that could cause this to happen. I have an '03 GT and have just added a bottle of fuel system cleaner to a fresh tank of Premium gas. Only thing I can think is that it is impossible to find gasoline without the 10% ethanol, would this pose enough of a problem to trip the sensor. Any help would be much appreciated.

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Raven
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Re: P0135 O2 sensor

Post by Raven » Mon Aug 20, 2012 6:28 pm

Are you sure you replaced the correct sensor, there are 2 of them. It is also possible that the replacement sensor is defective but unlikely. If you have an OBD II code reader reset the light using it. If not disconnect the negative side of the battery for 30 minutes. This should reset the light.

Seattle_03GT
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Re: P0135 O2 sensor

Post by Seattle_03GT » Wed Nov 13, 2019 12:39 pm

I have this exact trouble code and an '03 GT and have been searching for my "Bank 1 Sensor 1" upstream 02 sensor. It is not located simply at the firewall like in the following videos I've found. Can anyone point me to where it is at so I can assess whether or not I can do it myself?

The dealer is quoting me $390 to replace it ($170 for the GM part (which they recommend so it matches the downstream)).

Reference:
'03:  https://www.youtube.com/watch?v=Y0wjJ6YFPSc&t=56s
'03 Corolla:  https://www.youtube.com/watch?v=Bst9X-OfMYs
Center next to firewall:  https://www.youtube.com/watch?v=fDzwHpAGN5M
'04 Matrix; https://www.youtube.com/watch?v=v8myzBsuoY8
'03 GT Black, 166k, Dual Friction Clutch, otherwise stock.
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zbyers
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Re: P0135 O2 sensor

Post by zbyers » Wed Nov 13, 2019 1:00 pm

The first o2 sensor is before the first cat, so if you get under the car, it will be close to where the exhaust comes down from the firewall. i believe the connector to unplug it is beside the shifter/under passenger side carpet.
'74 Thing, '79 El Camino, '83 VW Vanagon DoKa '91 Vanagon,
'04 & '06 CRV, (2) '03 Base, '04 GT, '06 AWD, '07 Base, '17 Frontier CCLB

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northvibe
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Re: P0135 O2 sensor

Post by northvibe » Tue Feb 11, 2020 7:41 pm

My sister has a '10 2.4L however similar issue. THe cel was the downstream sensor, I replaced it, cleared the code, still came back with bad o2. I'm going to replace the up stream sensor now. If that still is bad, I'm wondering if it is a clogged/bad cat, maybe worth checking that.

zbyers
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Re: P0135 O2 sensor

Post by zbyers » Wed Feb 12, 2020 5:03 am

northvibe wrote:
Tue Feb 11, 2020 7:41 pm
My sister has a '10 2.4L however similar issue. THe cel was the downstream sensor, I replaced it, cleared the code, still came back with bad o2. I'm going to replace the up stream sensor now. If that still is bad, I'm wondering if it is a clogged/bad cat, maybe worth checking that.
usually you would get a cat related code (P0420 primarily) if the cat were below efficiency thresholds. This code is most likely related to the sensors themselves, and/or the wiring to the sensors.
'74 Thing, '79 El Camino, '83 VW Vanagon DoKa '91 Vanagon,
'04 & '06 CRV, (2) '03 Base, '04 GT, '06 AWD, '07 Base, '17 Frontier CCLB

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northvibe
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Re: P0135 O2 sensor

Post by northvibe » Wed Feb 12, 2020 9:58 am

zbyers wrote:
Wed Feb 12, 2020 5:03 am
northvibe wrote:
Tue Feb 11, 2020 7:41 pm
My sister has a '10 2.4L however similar issue. THe cel was the downstream sensor, I replaced it, cleared the code, still came back with bad o2. I'm going to replace the up stream sensor now. If that still is bad, I'm wondering if it is a clogged/bad cat, maybe worth checking that.
usually you would get a cat related code (P0420 primarily) if the cat were below efficiency thresholds. This code is most likely related to the sensors themselves, and/or the wiring to the sensors.
Good point. Well I hope it is just the o2 and I can get this thing running better. RUnning rich for this long can't be good for it ;) only big HP gains ;)

jolt
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Re: P0135 O2 sensor

Post by jolt » Thu Feb 13, 2020 10:31 pm

Running "rich" air/fuel ratios is defiantly bad for an engine. The excess fuel will wash down the cylinder walls, removing the oil from the upper piston ring. Since the piston ring is always spinning in the piston ring land, the top piston ring groove will wear out because the lubrication is now washed away. As the groove wears on the piston, you will get ring flutter. The top piston ring can no longer seal properly. Power will drop, oil consumption may increase, and higher cylinder wall wear will also happen. I have seen this before when guys do there own carb tuning thinking richer is more power.

As for the P0135 code, these links may help :

https://www.700r4transmissionhq.com/p01 ... a-corolla/

https://www.toyotanation.com/threads/p0 ... la.282339/

https://www.autocodes.com/p0135_toyota.html

Replace sensors with Denso brand, which is the OEM for this cars electrical system. If you do not believe me see link 2 above. Same goes for spark plugs, coil packs, etc... as Denso designed the electrical and if you do not want strange issues, stick with OEM parts. Check wiring and fuses that are related to the sensor heaters.

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northvibe
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Re: P0135 O2 sensor

Post by northvibe » Fri Feb 14, 2020 10:40 am

jolt wrote:
Thu Feb 13, 2020 10:31 pm
Running "rich" air/fuel ratios is defiantly bad for an engine. The excess fuel will wash down the cylinder walls, removing the oil from the upper piston ring. Since the piston ring is always spinning in the piston ring land, the top piston ring groove will wear out because the lubrication is now washed away. As the groove wears on the piston, you will get ring flutter. The top piston ring can no longer seal properly. Power will drop, oil consumption may increase, and higher cylinder wall wear will also happen. I have seen this before when guys do there own carb tuning thinking richer is more power.

As for the P0135 code, these links may help :

https://www.700r4transmissionhq.com/p01 ... a-corolla/

https://www.toyotanation.com/threads/p0 ... la.282339/

https://www.autocodes.com/p0135_toyota.html

Replace sensors with Denso brand, which is the OEM for this cars electrical system. If you do not believe me see link 2 above. Same goes for spark plugs, coil packs, etc... as Denso designed the electrical and if you do not want strange issues, stick with OEM parts. Check wiring and fuses that are related to the sensor heaters.
Sounds like the old Jeep TJ's. If you didn't use Mopar sensors, they failed like crazy. Was just working on my sister in-law's and made sure the mopar parts went in.

I'll post up if this gets fixed or any updates!

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northvibe
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Re: P0135 O2 sensor

Post by northvibe » Mon Feb 24, 2020 10:36 am

ACDelco o2 sensor arrived the other day. I'll have the car this weekend to install. Need to just have the right parts on hand! 22mm wrench of that o2!

zbyers
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Re: P0135 O2 sensor

Post by zbyers » Mon Feb 24, 2020 11:41 am

northvibe wrote:
Mon Feb 24, 2020 10:36 am
ACDelco o2 sensor arrived the other day. I'll have the car this weekend to install. Need to just have the right parts on hand! 22mm wrench of that o2!
try and spray it down with some penetrating oil a few times ahead of time, if you can. o2 sensors love to seize to the exhaust.
'74 Thing, '79 El Camino, '83 VW Vanagon DoKa '91 Vanagon,
'04 & '06 CRV, (2) '03 Base, '04 GT, '06 AWD, '07 Base, '17 Frontier CCLB

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northvibe
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Re: P0135 O2 sensor

Post by northvibe » Mon Mar 02, 2020 10:29 pm

freaking forgot the o2 sensor. However the weekend had no free time for me to work on the vibe. I'll probably have to make a special trip to fix.

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northvibe
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Re: P0135 O2 sensor

Post by northvibe » Fri May 01, 2020 9:06 am

OH MY GOSH. My "old" age must be catching up. I brought EVERYTHING except the thread knocker spray. I was able to back the o2 out about 1/4-1/2 a turn, then it wouldn't budge. UGH. need to get back and spend a day spraying it every so often so it cracks loose.

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