[khart05]

I have a 2001 Toyota Camry V6 engine. My check engine light came on while i was driving on a side street. The codes that came up were P1135 and i think P0135. It came up as a air/fuel ratio sensor. I replace the sensor closest to front of the car (the one between my engine and radiator) but the light keeps coming back on after i reset it. I even tried unplugging my battery. Any help would be appreciated!

 

[fenixus]

i believe P1135 relates to AFR heater on rear bank sensor (by firewall), not by the front of car.

P0135 is Heated Oxygen Sensor Circuit - Bank 1 Sensor 1.

 

[csaxon]

Bank 1 Sensor 1 (b1s1) THIS ONE

 

[khart05]

glen-

i replaced the one in front of the radiator...should i put the old one back in and put the new one in that spot?

 

[Jason.MZW20]

glen-

i replaced the one in front of the radiator...should i put the old one back in and put the new one in that spot?

Personally, I'd replace them in pairs because you'll soon get a P1155 or even a P1153 for the one on the front bank (closest to the radiator).

Denso 234-9021 (2001+ only) at Amazon is around $106.
[ame]http://www.amazon.com/Denso-234-9021-Oxygen-Sensor-Ratio/dp/B000C5YD42/ref=sr_1_1?ie=UTF8&s=automotive&qid=1283900862&sr=8-1[/ame]

OE spec, but not an OE/stealership price. Not sure if you already knew that.

 

[73sport]

If they're interchangeable, I'd opt to see that that error goes away by swapping in the new one. If it fixes it, go ahead and budget for the other. . .

just my poor 2 cents...