Engine-Codes - Generic - P1163

P1163 - Heated Oxygen Sensor 1 Lean Shift Monitoring Bank 2

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

P1163 Possible Causes

  • Faulty Front Heated Oxygen Sensor Bank 2
  • Faulty Front Heated oxygen sensor 1 heater
  • Fuel pressure
  • Faulty Fuel Injectors
  • Intake air leaks

How do I fix code P1163

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 P1163 code

Labor: 1.0

The cost of diagnosing the P1163 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)

P1163 Meaning

The heated oxygen sensor 1 is placed into the front tube. 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 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 1V to 0V.

P1163 More Information

Need more information on how to fix the P1163 code?
Get Access to Factory Service Manuals

Information for specific makes

Need more help?

Get the P1163 code diagnosed by a professional: Find a repair shop in your area