OBD Guide
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P1163

Heated Oxygen Sensor 1 Lean Shift Monitoring Bank 2

P1163 is an OBD-II diagnostic trouble code meaning: Heated Oxygen Sensor 1 Lean Shift Monitoring Bank 2. Common causes: oxygen sensor malfunction, vacuum leak. Estimated repair cost: $17–89.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–89 (est.)

Symptoms

  • Unstable engine operation
  • Increased fuel consumption
  • Power Loss
  • Check Engine Light Is On
  • Dips during acceleration

Causes

  • Oxygen sensor malfunction
  • Vacuum leak
  • Clogged fuel injectors
  • Fuel pump malfunction
  • Problems with the mass air flow sensor (MAF)

How to Fix

  1. Check the oxygen sensor for functionality
  2. Look for vacuum leaks in the intake system
  3. Check fuel pressure
  4. Clean or replace fuel injectors
  5. Check the operation of the mass air flow sensor

Related codes

P1164P1165P1135

Error P1163 by Vehicle Brand

AcuraBMWBuickCadillacChevroletChryslerGMGMCHondaInfinitiOldsmobileSaturnVolkswagen

FAQ

What does the P1163 code mean?

P1163 is an OBD-II diagnostic trouble code that indicates: Heated Oxygen Sensor 1 Lean Shift Monitoring Bank 2

What causes a P1163 error code?

The most common causes of P1163 include: Oxygen sensor malfunction; Vacuum leak; Clogged fuel injectors; Fuel pump malfunction.

How do I fix a P1163 diagnostic trouble code?

To fix P1163: Check the oxygen sensor for functionality. Look for vacuum leaks in the intake system. Check fuel pressure. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1163?

Yes, but get it checked soon

How much does it cost to fix P1163?

The estimated repair cost for P1163 is $17–89. Actual cost depends on your vehicle, location, and labor rates.

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