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P1158 – Land Rover DTC

Land Rover DTC P1158 – Oxygen Sensor Engine Rich *Codes* B D

DTC P1158 meaning on Land Rover

DTC P1158 on a Land Rover indicates an issue with the oxygen sensor in bank 2, sensor 1, detecting a rich air-fuel mixture condition.

Land Rover DTC P1158 symptoms

Symptoms of DTC P1158 on a Land Rover may include:

  • Check Engine Light illuminated
  • Decreased fuel efficiency
  • Rough idling or engine misfires
  • Strong fuel smell from the exhaust

Land Rover DTC P1158 causes

Common causes of DTC P1158 on a Land Rover include:

  • Faulty oxygen sensor
  • Vacuum leaks
  • Issues with the fuel pressure regulator
  • Dirty or clogged fuel injectors

Land Rover DTC P1158 seriousness

DTC P1158 should be addressed promptly as it can lead to decreased fuel efficiency and potential engine damage if left unresolved.

How to diagnose DTC P1158 on Land Rover

To diagnose DTC P1158 on a Land Rover, you can:

  1. Use an OBD-II scanner to retrieve the fault code
  2. Inspect the oxygen sensor for any visible damage or contamination
  3. Check for vacuum leaks using a smoke machine
  4. Test the fuel pressure regulator and fuel injectors

How to fix DTC P1158 on Land Rover

To fix DTC P1158 on a Land Rover, you may need to:

  1. Replace the faulty oxygen sensor
  2. Repair any vacuum leaks
  3. Clean or replace clogged fuel injectors
  4. Address any issues with the fuel pressure regulator

How to erase DTC P1158 on Land Rover

To erase DTC P1158 on a Land Rover, you can:

  1. Use an OBD-II scanner to clear the fault code
  2. Ensure the underlying issue has been resolved before clearing the code
  3. Perform a test drive to verify the repair

Recommended tools for Land Rover diagnostics

Explore our expert picks: The Best OBD2 Scanners for 2025

Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter

← All Land Rover Diagnostic Trouble Codes

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