2002 sienna check engine light

[TMMCTundra]

Hi there,
I have a 2002 sienna and the engine light recently came on. I used my scan tool to find out what code it was and came up with 0136. This code seems to refer to an oxygen sensor but I'm not sure which one. Can anyone help me? Does anyone know of a good source to order one from?

thanks
TMMCTundra

[siennasc98]

Originally Posted by TMMCTundra

Hi there,
I have a 2002 sienna and the engine light recently came on. I used my scan tool to find out what code it was and came up with 0136. This code seems to refer to an oxygen sensor but I'm not sure which one. Can anyone help me? Does anyone know of a good source to order one from?

thanks
TMMCTundra

P0136 O2 Sensor Circuit Malfunction (Bank 1 Sensor 2)

That's the heated oxygen sensor located after the catalytic converter.

Reference: Diagnostic Trouble Codes for OBD II (SAE J2012)

[cranky-condor]

I just bought a new one and they are not O2 sensors the are fuel mixture sensors More expensive than O2. There are 3! Bank 1m Sensor 2 is the one on the rear exhaust manifold, same as mine. I'l find out where I got mine online, It was a Denso OEM part number.

CC

[lokers3@yahoo.com]

Originally Posted by TMMCTundra

Hi there,
I have a 2002 sienna and the engine light recently came on. I used my scan tool to find out what code it was and came up with 0136. This code seems to refer to an oxygen sensor but I'm not sure which one. Can anyone help me? Does anyone know of a good source to order one from?

thanks
TMMCTundra

I have a 2002 Sienna and the check engine light recently lit up. I wish I would've taken care of it right away, cuz I was at about 78K. I read the info about the 8 yr/80K warranty, however, i just took a road trip to MN and now, have 84K on my van. Anyway, before I left on my trip, they charged me $90 to put my van on the computer and they said it was the catalytic converter/and O2 sensors. They told me it would be about $600 just for the part!!! I've looked online and saw the parts for under $300. If they are the parts I'm supposed to have??? How much is it for the part? and where can I buy it?
Thanks
Kory Gray

[lokers3@yahoo.com]

my 2002 sienna was recently diagnosed after the check engine light went on. they said i need a catalytic converter and 02 sensors that cost about $600 for the part. does this sound right?

[DaveArnold]

As a newbie...sorry if I sound familiar!
I have a 2002 Sienna with 90K and have a P1155 code for the last few days. That code points to the A/F Bank 1 Sensor 2.

(From reading I understand that 02 sensors have been replaced by Air/Fuel heater sensors for a broader-band response to the old voltage type.).

Lokers....speaking just as a reader not as a Toyota professional.....
Bad air/fuel mix apparently puts a hurting on the CAT converter and may be why some folks seeing this code are indicating the dual replacement of sensor AND CAT converter. Maybe somebody here can expound on how the need for a CAT replacement is made. If its just on presumption...maybe another dealer is in your future

General question:
Is it reasonable that a 2002 Sienna would show a 0136 code. It seems like the P1155 is the one that should be posted for this yr/model?

RE: the DENSO OEM parts world:
For the 2002 Sienna, they only list O2 sensors as a category AND they indicate a Right and Left Sensor (same part no. for both). Is this consistent with and indication of Bank 1, Sensor 2?

thanks,
davearnold

btw,I am loving this place.