Código de avería P0164 – This code is a generic powertrain code. It is considered generic because it applies to all makes and models of vehicles (1996-newer), although specific repair steps may be slightly different depending on the model. The catalytic converter is used to lower harmful emissions. To ensure proper operation, there is an O2 (oxygen) sensor located behind the catalyst that monitors the oxygen content of the exhaust after the cat. The PCM (Powertrain Control Module) then compares the post-cat reading to the pre-cat readings to determine if the catalyst is working properly. A P0164 refers to a fault at the post-cat O2 sensor, indicating that the signal voltage is too high. The O2 sensor is a four wire sensor. Two wires are dedicated to the heating element and two wires are dedicated to the sensor. The heating element should have battery voltage on one wire with key on engine off and ground should be present on the other. The PCM supplies a reference voltage to the O2 sensor which the sensor varies according to oxygen content in the exhaust. It is capable of varying between approximately 0.1 and 0.9 volts. This variance in the voltage is monitored by the PCM. The PCM also supplies a ground to the sensor. P0164 means that the voltage was too high on the signal circuit. Bank 2 is the side of the engine that doesn’t contain cylinder #1.
El código de avería P0164 indica: This code is a generic powertrain code. It is considered generic because it applies to all makes and models of vehicles (1996-newer), although specific repair steps may be slightly different depending on the model. The catalytic converter is used to lower harmful emissions. To ensure proper operation, there is an O2 (oxygen) sensor located behind the catalyst that monitors the oxygen content of the exhaust after the cat. The PCM (Powertrain Control Module) then compares the post-cat reading to the pre-cat readings to determine if the catalyst is working properly. A P0164 refers to a fault at the post-cat O2 sensor, indicating that the signal voltage is too high. The O2 sensor is a four wire sensor. Two wires are dedicated to the heating element and two wires are dedicated to the sensor. The heating element should have battery voltage on one wire with key on engine off and ground should be present on the other. The PCM supplies a reference voltage to the O2 sensor which the sensor varies according to oxygen content in the exhaust. It is capable of varying between approximately 0.1 and 0.9 volts. This variance in the voltage is monitored by the PCM. The PCM also supplies a ground to the sensor. P0164 means that the voltage was too high on the signal circuit. Bank 2 is the side of the engine that doesn’t contain cylinder #1.
¿Qué significa el código P0164?
This code is a generic powertrain code. It is considered generic because it applies to all makes and models of vehicles (1996-newer), although specific repair steps may be slightly different depending on the model. The catalytic converter is used to lower harmful emissions. To ensure proper operation, there is an O2 (oxygen) sensor located behind the catalyst that monitors the oxygen content of the exhaust after the cat. The PCM (Powertrain Control Module) then compares the post-cat reading to the pre-cat readings to determine if the catalyst is working properly. A P0164 refers to a fault at the post-cat O2 sensor, indicating that the signal voltage is too high. The O2 sensor is a four wire sensor. Two wires are dedicated to the heating element and two wires are dedicated to the sensor. The heating element should have battery voltage on one wire with key on engine off and ground should be present on the other. The PCM supplies a reference voltage to the O2 sensor which the sensor varies according to oxygen content in the exhaust. It is capable of varying between approximately 0.1 and 0.9 volts. This variance in the voltage is monitored by the PCM. The PCM also supplies a ground to the sensor. P0164 means that the voltage was too high on the signal circuit. Bank 2 is the side of the engine that doesn’t contain cylinder #1.
Síntomas del código P0164
- Fallo motor
- Pérdida de potencia
- Testigo encendido
Causas del código P0164
Este código puede estar relacionado con diferentes fallos en el sistema.
Solución del código P0164
Start the engine and observe the Bank 2 Sensor 3 (a.k.a. 2/3) O2 sensor voltage. You may need to raise the idle up until the O2 sensor starts switching. If it is stuck high, or close to 1 volt and the voltage doesn’t vary, then check for a good ground on both the heater element and the sensor. Also check that the heater element is being supplied good battery voltage. No heater operation can cause a sluggish sensor. If the grounds are good and the battery voltage is present, then jumper the sensor’s signal wire to the sensor’s ground wire. Now the scan tool should read low or near zero volts. If it does, the wiring is good. Replace the bank 2/3 O2 sensor. If jumpering the signal wire to the ground doesn’t lower the voltage, then check the O2 sensor wiring harness. Make sure there is no contact with hot exhaust components. Ensure good wiring harness connections. If the wiring checks out, then reperform the previous wiring harness checks at the PCM connector. If now the 2/3 O2 sensor reading drops, then there is a wiring problem that isn’t visible. Open the harness and visually inspect the wiring for problems. But if the result is the same, then the PCM may be bad.
Preguntas frecuentes
¿Es grave el código P0164?
Depende del vehículo, pero se recomienda revisarlo cuanto antes.
¿Se puede conducir con el código P0164?
No es recomendable durante largos periodos.