AutoCodes – RAM – P226C RAM

P226C RAM Code - Turbocharger Boost Control 'A' Slow Response

Quick Answer

The Variable Geometry Turbocharger (VGT) adjusts turbocharger performance by moving the position of the impeller nozzle, on the high-pressure (engine exhaust gas) side of the turbocharger assembly. Common causes include Powertrain Control Module (PCM) calibration update, Faulty Electronic Turbo Actuator, Faulty Turbocharger. 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: P226C RAM indicates Turbocharger Boost Control 'A' Slow Response.
Common causes: Common causes include Powertrain Control Module (PCM) calibration update, Faulty Electronic Turbo Actuator, Faulty Turbocharger.
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 494

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 25, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P226C RAM Description

The Variable Geometry Turbocharger (VGT) adjusts turbocharger performance by moving the position of the impeller nozzle, on the high-pressure (engine exhaust gas) side of the turbocharger assembly. The desired position of the actuator is commanded by the Powertrain Control Module (PCM). The actual position is sensed by the VGT and reported back to the PCM as feedback. Discrepancy in position feedback sent to the module, and commanded position sent to the VGT by more than a prescribed amount will result in failure of device rationality diagnostics. Failure to properly actuate the VGT will result in poor engine performance. The PCM lights the MIL lamp after the diagnostic runs and fails in two drive cycles. The PCM will turn off the MIL lamp immediately after this diagnostic runs and passes in four consecutive drive cycles. The Diagnostic Trouble Code (DTC) will be set when the PCM detects that the VGT is slow in responding to its commanded position.

OBDII Code P226C RAM - Turbocharger Boost Control 'A' Slow Response - AutoCodes.com — P226C RAM Code - Turbocharger Boost Control 'A' Slow Response

What does this mean?

What are the Possible Causes of the DTC P226C RAM?

Powertrain Control Module (PCM) calibration update
Faulty Electronic Turbo Actuator
Faulty Turbocharger

How to Fix the DTC P226C RAM?

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 P226C RAM 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 P226C RAM Code

1. What does the OBDII code P226C mean on a RAM vehicle?

P226C indicates that the turbocharger boost control system 'A' is responding slower than expected, which can affect engine performance.

2. What are common symptoms of the P226C code in a RAM?

Symptoms may include reduced engine power, poor acceleration, increased fuel consumption, and the illumination of the check engine light.

3. What causes the P226C code to appear on a RAM?

Common causes include a malfunctioning turbocharger actuator, carbon buildup in the turbo, vacuum system leaks, or issues with the boost pressure sensor.

4. Can driving with the P226C code damage my RAM?

Driving with this code for an extended period may cause engine performance issues and could lead to further damage to the turbocharger or related components.

5. How do I diagnose the P226C code on my RAM?

Diagnosis typically involves checking the turbocharger actuator, inspecting vacuum lines, testing the boost pressure sensor, and ensuring there’s no carbon buildup in the turbo system.

6. How is the P226C code fixed on a RAM?

Repairs may include cleaning or replacing the turbocharger, replacing the actuator, fixing vacuum leaks, or replacing faulty sensors.

7. Is a software update required to fix the P226C code on my RAM?

In some cases, a software update for the engine control module (ECM) may be necessary to correct the issue, but this depends on the specific model and year.

8. Can a clogged air filter cause the P226C code on a RAM?

A severely clogged air filter could restrict airflow to the turbocharger, potentially leading to the P226C code. Always ensure the air filter is clean and in good condition.

9. How much does it cost to fix the P226C code on a RAM?

Repair costs can vary widely, typically ranging from $100 for sensor replacement to $2,500 or more for turbocharger replacement, depending on the issue.

10. Can I clear the P226C code without repairing my RAM?

Clearing the code without addressing the underlying issue will not fix the problem, and the code is likely to return. Proper diagnosis and repair are necessary.