Does one control the other
P1135 A/F (airflow sensor) heater circuit malfunction (Bank 1 Sensor 1)
P1155 A/F (airflow sensor) heater circuit malfunction (Bank 2 Sensor 1)
This can be a common fault where both 2 sensor are affected, In the engine fuse box is a fuse for the A/F sensor and EFI 1 fuse, if this is open both these codes will code up. There is also a A/F relay, if this relay is non operation it can cause these 2 codes. or a open harness to both the sensor.
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