Question about 1998 Toyota Avalon
The O2 sensor is out, the test shows "O2 sensor Heater Circuit Malf (Bank 1 Sensor 1)"
My question is where is this particular sensor, I changed the one in the fornt center of the motor but that was not the correct one.
Bank 1 Sensor 1 is the sensor next to the head and in front of the cat
converter for the head nearest the firewall. Not after the cat.
See the diagram on page one of:
Posted on Jul 31, 2008
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Posted on Jan 02, 2017
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P0141....O2 Sensor Heater Circuit (Bank 1 Sensor 2)
P0142....O2 Sensor Circuit Malfunction (Bank 1 Sensor 3)
P0143....O2 Sensor Circuit Low Voltage (Bank 1 Sensor 3)
P0144....O2 Sensor Circuit High Voltage (Bank 1 Sensor 3)
P0145....O2 Sensor Circuit Slow Response (Bank 1 Sensor 3)
P0146....O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 3)
P0147....O2 Sensor Heater Circuit (Bank 1 Sensor 3)
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