P1135 - A/F Sensor Heater Circuit Malfunction (Bank 1 Sensor 1) To obtain a high purification rate for the CO, HC and NOx components of the exhaust gas, a three-way catalytic converter is used, but for the most efficient use of the three-way catalytic converter, the air-fuel ratio must be precisely controlled so that it is always close to the stoichiometric air-fuel ratio.

2002 Toyota Tacoma: cyl..check engine code p1135. Ron Z. | 18+yrs experience. State Inspector and Toyota ...

Customer: 2001 Avalon P1135 code, replaced the sensor, light came back on, replaced blown fuse to the sensor heater, light came back on, changed the sensor again and it came back on. The light is coming back on immediately not after a few minutes.

Hello and thank you for using JustAnswer. My name is XXXXX XXXXX I will do my best to assist you with your Toyota problem. The P1135 code is for a failing heater circuit in the Bank 1 Sensor 1 O2 sensor. This sensor is in the exhaust pipe ahead of the catalytic converter. Replacing this sensor should fix your problem. See picture below.

Welcome to the just answer site, thanks for posting your question. It sounds like there is an engine misfire or a timing issue which is the most likely cause of the P1135 air/fuel ratio sensor code, the fuel mixture is either too lean or rich for the sensor to compensate and so the check engine light turns on.

The P1135 is a fairly straight forward code pointing to a fault with the internal heater for the A/F Sensor (aka Oxygen Sensor). The on-board computer uses this internal heater to get the sensor to normal operating temps within a matter of seconds on cold starts.

The sensor is in the passengers side exhaust manifold before the catalytic converter. It looks similar to a spark plug. Thats the sensor thats bad. I would get the part from Toyota as the aftermarket places tend to sell you the wrong part.

2002 camry 3.0, codes P1135 and P1155. checked fuse, relay, sensor heater resistance. Code stays off with code reader Q&A: Troubleshooting P1135 & P1155 Codes on 2002 Toyota Camry

Toyota Master ASE Certified, Prius/ Highlander/ Camry Hybrid Certified, trained in all areas 4,489 Satisfied Customers 2000 Toyota Avalon - 105,000 miles - maintained and working fine.

Code p1135 on 2001 toyota tacoma pickup 3.4 v6 automatic transmission - Answered by a verified Toyota Mechanic We use cookies to give you the best possible experience on our website. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them.