OBD Guide
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P014D

O2 Sensor Slow Response - Lean to Rich Bank 1 Sensor 1

P014D is an OBD-II diagnostic trouble code meaning: O2 Sensor Slow Response - Lean to Rich Bank 1 Sensor 1. Common causes: dirty or worn oxygen sensor, damaged or corroded sensor wiring harness. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Increased fuel consumption
  • Unstable idling
  • Reduced engine power
  • Increased content of harmful emissions

Causes

  • Dirty or worn oxygen sensor
  • Damaged or corroded sensor wiring harness
  • Vacuum leaks
  • Exhaust system leaking
  • Problems in the fuel supply system
  • Engine control unit malfunction

How to Fix

  1. Check the visual condition of the sensor and its connector
  2. Check the integrity of the wiring harness
  3. Check the system for vacuum leaks
  4. Check the exhaust system for leaks
  5. Check sensor operating parameters with a scanner
  6. If necessary, replace the oxygen sensor

Related codes

P0135P0141P0171P0172

Error P014D by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the P014D code mean?

P014D is an OBD-II diagnostic trouble code that indicates: O2 Sensor Slow Response - Lean to Rich Bank 1 Sensor 1

What causes a P014D error code?

The most common causes of P014D include: Dirty or worn oxygen sensor; Damaged or corroded sensor wiring harness; Vacuum leaks; Exhaust system leaking.

How do I fix a P014D diagnostic trouble code?

To fix P014D: Check the visual condition of the sensor and its connector. Check the integrity of the wiring harness. Check the system for vacuum leaks. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P014D?

Limited driving only, diagnose soon

How much does it cost to fix P014D?

The estimated repair cost for P014D is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat