What Is the Code P1135

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 needs to reach a certain operating temperature, a minimum of 1200 degrees Fahrenheit, to create accurate voltage signals.

How do I fix my P1135 code?

1. You can repair the air-fuel ratio bank 1. …
2. If the problem is the short or open harness in the air-fuel ration bank 1. …
3. If the fault is from a poor electrical connection, you can check the wires and repair the connections.
4. Also, you can correct any leaks emanating from the exhaust of the vacuum.

What is a F sensor heater circuit?

The air fuel ratio (A/F) sensor measures oxygen content of the exhaust in a wider range. … The air fuel ratio sensor is installed in the exhaust manifold or in the front exhaust pipe, before the catalytic converter. It might also be called ‘front O2 sensor’.