AutoCodes – Dodge – P2424 Dodge

P2424 Dodge Code - HC Adsorption Catalyst Efficiency Below Threshold Bank 2

Quick Answer

The Engine Control Module (ECM) monitors the phase gap between heated oxygen sensor 2 signal and heated oxygen sensor 3 signal. Common causes include HC adsorption catalyst (under floor), Exhaust tube, Intake air leaks. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P2424 Dodge indicates HC Adsorption Catalyst Efficiency Below Threshold Bank 2.
Common causes
Common causes include HC adsorption catalyst (under floor), Exhaust tube, Intake air leaks.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 3,392
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 14, 2020
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Code P2424 Dodge Description

The Engine Control Module (ECM) monitors the phase gap between heated oxygen sensor 2 signal and heated oxygen sensor 3 signal.
The phase gap between heated oxygen sensor 2 signal and heated oxygen sensor 3 signal becomes small as the HC adsorption catalyst (under floor) is deteriorated.
When the phase gap between heated oxygen sensor 2 signal and heated oxygen sensor 3 signal approaches a specified limit value, the HC adsorption catalyst (under floor) malfunction is diagnosed.
OBDII Code P2424 Dodge - HC Adsorption Catalyst Efficiency Below Threshold Bank 2 - AutoCodes.com
P2424 Dodge Code - HC Adsorption Catalyst Efficiency Below Threshold Bank 2

What are the Possible Causes of the DTC P2424 Dodge?

  • HC adsorption catalyst (under floor)
  • Exhaust tube
  • Intake air leaks
  • Faulty Fuel injector
  • Fuel injector leaks
  • Faulty Spark plug
  • Improper ignition timing

How to Fix the DTC P2424 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 P2424 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.

Need more information about the P2424 Dodge code?

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Need Help with the Code?

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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 P2424 Dodge Code

What does OBDII code P2424 mean for a Dodge vehicle?

The P2424 code indicates that the HC (hydrocarbon) adsorption catalyst efficiency is below the threshold for Bank 2, meaning the system is not effectively reducing hydrocarbon emissions.

What are the common symptoms of the P2424 code?

Symptoms may include an illuminated check engine light, reduced fuel efficiency, increased emissions, and possible engine performance issues.

What causes the P2424 code in Dodge vehicles?

Common causes include a malfunctioning HC adsorption catalyst, a damaged or failing oxygen sensor, exhaust leaks, or issues with the engine's air-fuel ratio.

Can a faulty oxygen sensor trigger the P2424 code?

Yes, a failing oxygen sensor can provide incorrect readings, leading to the P2424 code being stored.

How can I diagnose the P2424 code?

Diagnose the code by checking the oxygen sensor readings, inspecting the HC adsorption catalyst for damage, and checking for exhaust leaks or other related issues.

Is it safe to drive with a P2424 code?

While the vehicle may still be drivable, running with this code can lead to increased emissions and potential damage to the catalytic system over time.

How do I fix the P2424 code?

Repairs may involve replacing a faulty HC adsorption catalyst, oxygen sensors, or fixing exhaust leaks. Clear the code after repairs and verify proper operation.

Can a dirty air filter cause the P2424 code?

A clogged air filter can disrupt the air-fuel ratio, potentially contributing to the conditions that trigger this code.

How do I prevent the P2424 code from occurring?

Regular maintenance, such as replacing oxygen sensors and air filters on schedule, can help prevent issues related to hydrocarbon catalyst efficiency.

What does Bank 2 refer to in the P2424 code?

Bank 2 refers to the side of the engine opposite Bank 1, typically the side without cylinder #1 in a V-type engine configuration.

Discuss the causes and fixes for P2424 Dodge OBDII Code

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