How is the fuel ratio sensor heater controlled?
The air/fuel ratio sensor heater element is controlled by the ECM based on signals coming from engine coolant temp and engine load. Voltage signals received through the heater element circuit are monitored by the ECM, which determines the state of the circuit by comparing voltage with factory specifications.
Where is Bank 1 sensor on 2003 Avalon XLS?
2003 Avalon XLS Bank 1 Sensor 1 Replacement… The key to replacing the sensor is making sure you are working on the right one. On the Avalon, Bank 1 Sensor 1 is between the engine and the car fire wall… see the series of photos.
Where is the bank 1 air fuel ratio sensor?
The error code was P1135 for Bank 1 Sensor 1 Air Fuel Ratio Sensor. Of course, this is the most difficult sensor to reach (arrg!). It is in the exhaust manifold on the back side of the engine just in front of the firewall. You can only really reach it with one arm by coming in from the top of the engine on the driver’s side down by the firewall.
What is OBD code for air sensor heater?
P1135 Code – General. General Fault Code for Air/Fuel Sensor Heater Circuit Response – Bank 1, Sensor 1. OBD-II code P1153 represents a general fault in the air/fuel sensor heater circuit for bank 1, sensor 1.
What is the fault code for an air heater?
General Fault Code for Air/Fuel Sensor Heater Circuit Response – Bank 1, Sensor 1 OBD-II code P1153 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.
What is the diagnostic code for a fuel heater?
P1135 Code – General. OBD-II code P1153 represents a general fault in the air/fuel sensor heater circuit for bank 1, sensor 1.