Engine-CodesDodge – P2273 Dodge

P2273 Dodge Code - Oxygen Sensor Signal Stuck Rich Bank 2 Sensor 2

Quick Answer

The P2273 diagnostic trouble code (DTC) for Dodge vehicles indicates that the oxygen sensor signal for Bank 2 Sensor 2 is stuck rich. Common causes include Faulty oxygen sensor, Stuck open fuel injector, Vacuum leak in the intake system. 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
P2273 Dodge indicates Oxygen Sensor Signal Stuck Rich Bank 2 Sensor 2.
Common causes
Common causes include Faulty oxygen sensor, Stuck open fuel injector, Vacuum leak in the intake system.
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.
Table of contents Created and updated by William Orellana on Sep 07, 2024
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Code P2273 Dodge Description

The P2273 diagnostic trouble code (DTC) for Dodge vehicles indicates that the oxygen sensor signal for Bank 2 Sensor 2 is stuck rich. This means that the sensor is detecting a higher-than-normal level of unburned fuel in the exhaust gas. The oxygen sensor is responsible for measuring the amount of oxygen in the exhaust gases, which helps the engine control module (ECM) adjust the air-fuel mixture for optimal combustion. When the sensor is stuck rich, it means that the ECM is receiving a signal indicating that there is an excessive amount of fuel in the exhaust, leading to a rich air-fuel mixture.

OBDII Code P2273 Dodge - Oxygen Sensor Signal Stuck Rich Bank 2 Sensor 2
P2273 Dodge Code - Oxygen Sensor Signal Stuck Rich Bank 2 Sensor 2

Common Causes of P2273 Dodge

  1. Faulty oxygen sensor
  2. Stuck open fuel injector
  3. Vacuum leak in the intake system
  4. Faulty fuel pressure regulator
  5. Issues with the engine's air intake system

Symptoms of P2273 Dodge

  1. Decreased fuel efficiency
  2. Rough idling or engine misfires
  3. Strong fuel odor from the exhaust
  4. Check Engine Light illuminated
  5. Reduced engine performance

How to Fix P2273 Dodge

  1. Diagnose the root cause of the rich signal by performing a comprehensive inspection of the oxygen sensor, fuel injectors, vacuum lines, fuel pressure regulator, and air intake system.
  2. Replace the oxygen sensor if it is determined to be faulty.
  3. Clean or replace any stuck open fuel injectors.
  4. Repair any vacuum leaks in the intake system.
  5. Replace the fuel pressure regulator if it is malfunctioning.

Cost to Fix P2273 Dodge

The typical repair costs for addressing a P2273 code on a Dodge vehicle can range from $200 to $500, including parts and labor. However, it is important to note that the specific diagnosis time and labor rates at auto repair shops can vary based on various factors. Auto repair shops commonly charge between $80 and $150 per hour for labor, but rates may be higher at dealerships or in metropolitan areas. Independent shops may offer lower labor rates. It is advisable to obtain local quotes for a more accurate estimate of the repair costs.

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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.

Frequently Asked Questions about P2273 Dodge Code

What does the OBDII code P2273 mean for a Dodge vehicle?

P2273 indicates that the downstream oxygen sensor (Bank 2, Sensor 2) is detecting a consistently rich air-fuel mixture.

What are the common symptoms of code P2273 on a Dodge?

Symptoms may include reduced fuel efficiency, rough engine performance, failed emissions tests, and the illumination of the check engine light.

What causes the P2273 code to be triggered?

Common causes include a faulty downstream oxygen sensor, exhaust leaks, a malfunctioning catalytic converter, or issues with fuel injectors or ignition components.

Which sensor is involved in the P2273 code?

The code pertains to Bank 2 Sensor 2, which is the downstream oxygen sensor located behind the catalytic converter on the side of the engine opposite Cylinder 1.

Can an exhaust leak cause the P2273 code on a Dodge?

Yes, an exhaust leak near the downstream sensor can disrupt readings and lead to a stuck rich signal.

How can the P2273 code affect engine performance?

The code can cause poor fuel economy, reduced engine efficiency, and potential damage to the catalytic converter over time.

Is it safe to drive with the P2273 code active on a Dodge?

While the vehicle may still be drivable, ignoring the code can lead to more severe damage, such as catalytic converter failure, and increased emissions.

How is the P2273 code diagnosed?

A mechanic will use an OBDII scanner to confirm the code, inspect the oxygen sensor and wiring, check for exhaust leaks, and analyze fuel system performance.

What repairs are typically needed to fix the P2273 code?

Repairs may include replacing the downstream oxygen sensor, fixing exhaust leaks, addressing fuel system problems, or replacing a damaged catalytic converter.

Can a dirty air filter cause a P2273 code on a Dodge?

While unlikely, a severely dirty air filter could impact air-fuel mixture and contribute to related issues, but it’s not a primary cause for this code.

Discuss the causes and fixes for P2273 Dodge OBDII Code

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