AutoCodes – Dodge – P014C Dodge

P014C Dodge Code - Oxygen Sensor 1/1 Slow Response Rich to Lean

Quick Answer

The engine after treatment system monitor the oxygen content in the diesel engine exhaust. Common causes include Excessive fuel entering the aftertreatment / exhaust system, Faulty Mass Air Flow (MAF) sensor, Engine misfire. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

What it means: P014C Dodge indicates Oxygen Sensor 1/1 Slow Response Rich to Lean.
Common causes: Common causes include Excessive fuel entering the aftertreatment / exhaust system, Faulty Mass Air Flow (MAF) sensor, Engine misfire.
Severity: Moderate - service should be scheduled soon.
Can I drive?: The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

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Code Popularity 14,664

How popular is this code, among other codes? Low

Repair Importance Level

Moderate (Service soon) (2 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Apr 13, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code P014C Dodge Description

The engine after treatment system monitor the oxygen content in the diesel engine exhaust. The Powertrain Control Module (PCM) monitor the exhaust gases for oxygen content and varies the rich/lean fuel mixture of the intake air fuel mixture to adjust the system. This diagnosis monitor the status message broadcast by the Smart O2 sensor module for the upstream O2 sensor circuit. The PCM will set the fault if it receives an FMI (failure Mode Indicator) message from the Smart O2 Module. The PCM will illuminate the MIL lamp immediately when the diagnostic runs and fails. The PCM will turn off the MIL lamp diagnostic runs and passes in four consecutive drive cycles.

OBDII Code P014C Dodge - Oxygen Sensor 1/1 Slow Response Rich to Lean - AutoCodes.com — P014C Dodge Code - Oxygen Sensor 1/1 Slow Response Rich to Lean

What does this mean?

What are the Possible Causes of the DTC P014C Dodge?

Excessive fuel entering the aftertreatment / exhaust system
Faulty Mass Air Flow (MAF) sensor
Engine misfire
Intake leak
Exhaust leak
Faulty EGR system
Faulty Oxygen (O2) Sensor 1/2 (Sensor 1 / Bank 1) (Upstream / Bank 1)
Faulty Oxygen (O2) Sensor Module

How to Fix the DTC P014C Dodge?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P014C Dodge code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.