AutoCodes – Chevrolet – P244C Chevrolet

P244C Chevrolet Code - Catalyst Temperature Too Low During Regeneration

Quick Answer

The diesel exhaust aftertreatment system consists of an underhood pre-catalytic converter and an underbody catalyst converter. Common causes include Exhaust leaks, Faulty Diesel Particulate Filter (DPF), Faulty Diesel Oxidation Catalyst (DOC) converter. 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: P244C Chevrolet indicates Catalyst Temperature Too Low During Regeneration.
Common causes: Common causes include Exhaust leaks, Faulty Diesel Particulate Filter (DPF), Faulty Diesel Oxidation Catalyst (DOC) converter.
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.

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Code Popularity 6,967

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 28, 2021

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P244C Chevrolet Description

The diesel exhaust aftertreatment system consists of an underhood pre-catalytic converter and an underbody catalyst converter. The underbody catalyst converter also consists of the main Diesel Oxidation Catalyst and the coated Diesel Particulate Filter (DPF). One of the main purposes of the DPF is to collect particulates from the engine exhaust in order to minimize discharge of soot to the atmosphere. The soot particles accumulate in the channels of the DPF and are burned off at regular intervals through a process called regeneration. This prevents the DPF from clogging. The Engine Control Module (ECM) commands the DPF regeneration after calculating various vehicle conditions such as DPF pressure difference, exhaust gas temperature, engine oil quality, engine speed, etc. Excessive accumulation of the soot in the DPF can cause a drop in the engine performance. During regeneration, additional fuel is injected via multiple post injections in order to increase the exhaust gas temperature. During this period, the DPF temperature is raised to approximately 600°C (1112°F) and the accumulated soot is oxidized or burned off into carbon dioxide (CO2). The Diagnostic Trouble Code (DTC) will be set when the exhaust gas temperature is too low during regeneration.

OBDII Code P244C Chevrolet - Catalyst Temperature Too Low During Regeneration - AutoCodes.com — P244C Chevrolet Code - Catalyst Temperature Too Low During Regeneration

What does this mean?

What are the Possible Causes of the DTC P244C Chevrolet?

Exhaust leaks
Faulty Diesel Particulate Filter (DPF)
Faulty Diesel Oxidation Catalyst (DOC) converter
Aftermarket exhaust accessories or performance modifications

How to Fix the DTC P244C Chevrolet?

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 P244C Chevrolet 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.

Frequently Asked Questions about P244C Chevrolet Code

1. What are the common symptoms of OBDII code P244C in a Chevrolet related to catalyst temperature too low during regeneration?

- Common symptoms include the check engine light coming on, reduced engine performance, and potential misfires.

2. What are some possible causes of OBDII code P244C in a Chevrolet?

- Possible causes include a faulty air injection pump, damaged air injection system components, or issues with the catalyst temperature sensor.

3. How can I diagnose the OBDII code P244C in a Chevrolet related to catalyst temperature too low during regeneration?

- Diagnostic steps may involve checking the air injection pump operation, inspecting air injection system components for damage, and testing the catalyst temperature sensor.

4. What are the repair options for fixing OBDII code P244C in a Chevrolet?

- Repair options may include replacing a faulty air injection pump, repairing damaged air injection system components, or replacing the catalyst temperature sensor.

5. Can driving habits affect the occurrence of OBDII code P244C in a Chevrolet?

- Yes, frequent short drives that do not allow the vehicle to reach optimal operating temperature can contribute to catalyst temperature issues triggering this code.

6. How urgent is it to address OBDII code P244C in a Chevrolet?

- It is recommended to address this code promptly to prevent potential damage to the catalyst and ensure optimal engine performance.

7. Are there any preventative measures to avoid OBDII code P244C in a Chevrolet?

- Regularly driving the vehicle at highway speeds to allow for proper regeneration of the catalyst can help prevent issues related to catalyst temperature.

8. Can a DIY enthusiast troubleshoot and repair OBDII code P244C in a Chevrolet?

- While some aspects of diagnosis and repair may be possible for DIY enthusiasts, it is recommended to consult a professional mechanic for accurate diagnosis and proper repair.

9. What is the typical cost to repair OBDII code P244C in a Chevrolet at a dealership or repair shop?

- Repair costs for this code can vary depending on the exact cause, but they may range from a few hundred to over a thousand dollars, including parts and labor.

10. How long does it usually take to repair OBDII code P244C in a Chevrolet?

- The repair time can vary based on the specific cause and extent of the issue, but it typically takes a few hours to a full day for a mechanic to diagnose and repair the problem.