How do I fix code P1135?

Common repairs for this code include:

1. Replacement of the Air-Fuel Ratio (A/F) Sensor Bank 1 Sensor 1.
2. Repair or replacement of open or short problem in the Air-Fuel Ratio (A/F) Sensor Bank 1 Sensor 1 harness.
3. Repair or replacement of poor electrical connection in Air-Fuel Ratio (A/F) Sensor Bank 1 Sensor 1.

What is code P1135 Toyota?

OBD-II code P1135 represents a general fault in the air/fuel sensor heater circuit for bank 1, sensor 1. The air/fuel ratio sensor heater element is controlled by the ECM based on signals coming from engine coolant temp and engine load.

What’s a P1135 code on a 2001 Tacoma prerunner?

Code P1135 A/F Sensor Heater Circuit (Bank 1 Sensor 1) stored in my 2001 Toyota Tacoma. P1135 stands for A/F Sensor Heater Circuit (Bank 1, Sensor 1). The code indicates that the engine control module (ECM) has detected a problem with the air-fuel ratio sensor 1 heater circuit on bank 1.

Where is the air fuel ratio sensor located?

exhaust manifold
The air fuel ratio sensor is typically in the exhaust manifold or in the front exhaust pipe. It measures the oxygen in the exhaust and sends that information to the ECU.

What side is bank 1 sensor 2?

Bank 1 sensor 2 is located downstream, usually right behind the catalytic converter. Regardless of the bank, all oxygen sensors use the same naming pattern.

Can I drive with a bad air fuel sensor?

Yes, you can drive with a bad oxygen sensor if you can still start your engine and feel little difficulty driving. But don’t leave it alone for over a couple of days, as it might cause safety problems and lead to the malfunction of other parts of your vehicle.

What is a bad air-fuel ratio?

If the ratio is too rich or too lean, the engine will not burn optimally burn the air-fuel mixture which can cause performance issues or use up too much fuel. The ideal air-fuel ratio that burns all fuel without excess air is 14.7:1. This is referred to as the “stoichiometric” mixture.

How do you diagnose a bad air fuel ratio sensor?

Symptoms of a Bad or Failing Air Fuel Ratio Sensor

1. Decrease in fuel efficiency. One of the first symptoms of a problem with an air-fuel ratio sensor is a decrease in fuel efficiency.
2. Drop in engine power output.
3. Rough idle.

How do you know if your air fuel sensor is bad?

Symptoms of a defective Oxygen/Air-Fuel Ratio Sensor: Common indications of a bad oxygen/air-fuel ratio sensor include rough idling, engine pinging, poor gas mileage and increased exhaust emissions. One of the first symptoms of a faulty sensor is the lighting up of the “Check Engine” light.