Engine-Codes - Infiniti - P1164 2003 INFINITI G35

P1164 2003 INFINITI G35 - HO2S21 Rich Shift Monitoring

Repair Importance Level: 3/3
Repair Difficulty Level: 2/3  What is this?

P1164 2003 INFINITI G35 Possible Causes

  • Faulty O2 Sensor Heater Bank 2 Sensor 1
  • O2 Sensor Heater Bank 2 Sensor 1 harness is open or shorted
  • O2 Sensor Heater Bank 2 Sensor 1 circuit poor electrical connection

How do I fix code P1164 2003 INFINITI G35

Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

Cost of diagnosing the P1164 2003 INFINITI G35 code

Labor: 1.0

The cost of diagnosing the P1164 2003 INFINITI G35 code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.

Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P1164 2003 INFINITI G35 Meaning

The Heated Oxygen Sensor 1 is placed into the exhaust manifold. It detects the amount of oxygen in the exhaust gas compared to the outside air. The heated oxygen sensor 1 has a closed-end tube made of ceramic zirconia. The zirconia generates voltage from approximately 1V in richer conditions to 0V in leaner conditions. The heated oxygen sensor 1 signal is sent to the Engine Control Module (ECM). The ECM adjusts the injection pulse duration to achieve the ideal air-fuel ratio. The ideal air-fuel ratio occurs near the radical change from 1 to 0V.

P1164 2003 INFINITI G35 More Information

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