2002 4Runner Check Engine Light Code P1135

[cyrataurean]

The check engine light came on for the first time since I purchased my truck. The code is P1135...The Bank 1 Sensor 2 air/fuel sensor heater is not functioning properly. Can anyone help me in locate the part as well as replacing it? I would greatly appreciate it.

 

[heat]

The check engine light came on for the first time since I purchased my truck. The code is P1135...The Bank 1 Sensor 2 air/fuel sensor heater is not functioning properly. Can anyone help me in locate the part as well as replacing it? I would greatly appreciate it.

Same problem on mine, like Durk says, front air/fuel sensor fixed it. Replace
only with original Denso part. Make sure there aren't any vacuum leaks first.

 

[cyrataurean]

Yes'm, it was the Bank 1 Sensor 2. I did replace it. However, it is now doing the herky-jerky every time I step on the gas after being at a dead stop. Is this normal?

 

[ghettoflow21]

Are you sure that is P1135? Because that does not exist on a 2002 and is for Sensor 1, not Sensor 2 on trucks with O2 sensors in front. You have an A/F sensor in front.

I suspect you got a P1136. Confirm?

I also just got a P1135 code on my 2002 4Runner and the computer said "Air filter sensor heat circuit malfunction (bank 1 sensor 1) along with a P0300 (random misfire).

Is this the correct part that I should purchase?

Amazon.com: Denso 234-9002 Air Fuel Ratio Sensor: Automotive

 

[ghettoflow21]

Are you sure that is P1135? Because that does not exist on a 2002 and is for Sensor 1, not Sensor 2 on trucks with O2 sensors in front. You have an A/F sensor in front.

I suspect you got a P1136. Confirm?

Bump, any help would be appreciated!

 

[jgue467]

...also just got a P1135 code on my 2002 4Runner and the computer said "Air filter sensor heat circuit malfunction (bank 1 sensor 1) along with a P0300 (random misfire). ...

Well that is the correct A/F sensor.

But I don't know that it will solve the 0300. That could be plugs, wires, coil or other.

Luck and enjoy the Runner. :cowboy:

 

[TheDurk]

I also just got a P1135 code on my 2002 4Runner and the computer said "Air filter sensor heat circuit malfunction (bank 1 sensor 1) along with a P0300 (random misfire).

Is this the correct part that I should purchase?

Amazon.com: Denso 234-9002 Air Fuel Ratio Sensor: Automotive

I'm sorry, my earlier post was incorrect. (I deleted it). P1135 does apply to the front sensor on a 2002. (Bank 1 Sensor 1) I.m not sure where I was checking when I wrote that but I definitely got it wrong.

From the 2002 FSM:

http://www.teamtoyota4x4.org/archivio/1996%20to%202002%20Toyota%204Runner%20Repair%20and%20Wiring%20Manuals/techinfo.toyota.com/ileaf/02toyrm/02toypdf/02rmsour/2002/024runne/di/eg5vzfe/cip1135.pdf

According to Denso, that is the correct p/n for that sensor on all 2002 4Runners. It is an A/F sensor, not an O2.

Find My Part

As to the P0300, those can be a pain. Here is the 2002 FSM diagnostic procedure:

http://www.teamtoyota4x4.org/archivio/1996%20to%202002%20Toyota%204Runner%20Repair%20and%20Wiring%20Manuals/techinfo.toyota.com/ileaf/02toyrm/02toypdf/02rmsour/2002/024runne/di/eg5vzfe/cip0300p.pdf

 

[RaymondHat]

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