Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
Your car has a special filter that helps clean the air coming out of the engine. This code means that the filter might be broken or missing some parts.
The code indicates an issue with the diesel particulate filter (DPF) on Bank 1, which may be deteriorated or missing its substrate.
The P226D code is triggered when the Engine Control Module (ECM) detects that the diesel particulate filter (DPF) on Bank 1 has deteriorated or is missing its substrate. The DPF is responsible for trapping soot and other particulates from the exhaust gases. If the substrate is damaged or missing, the filter cannot function properly, leading to increased emissions.
• Check Engine Light is on
• Reduced engine performance
• Increased exhaust smoke
• Physical damage to the DPF
• Excessive soot accumulation
• Improper installation or removal of the DPF
DPF: Diesel Particulate Filter, a device designed to remove diesel particulate matter or soot from the exhaust gas of a diesel engine.
Substrate: The material inside the DPF that helps trap soot and particulates.
• Inspect the DPF for physical damage
• Check for excessive soot buildup
• Verify proper installation of the DPF
• Replace the damaged DPF
• Clean the DPF if clogged
• Ensure correct installation of the DPF
• OBD-II scanner
• Wrench set
• Inspection mirror
$500 - $2000
Moderate
• Ford F-250
• Chevrolet Silverado 2500
• Ram 2500
• Regularly maintain the DPF
• Use high-quality diesel fuel
• Avoid short trips that prevent DPF regeneration
Emission Control System
• Avoid driving the vehicle until repaired to prevent further damage.
• Consult a professional mechanic for a thorough inspection.
Check with your vehicle manufacturer for warranty coverage on emission-related components.
The P226D code has become more common with the increased use of diesel particulate filters in modern diesel engines.
High – Addressing this issue promptly is important to prevent increased emissions and potential engine damage.
Driving with a malfunctioning DPF can lead to increased emissions, which may violate environmental regulations.
• Engine at operating temperature
• Vehicle driven under normal conditions
The diesel particulate filter is located in the exhaust system, typically near the engine.
Q: Can I drive with a P226D code?
A: It's not recommended to drive with this code active as it can lead to increased emissions and potential engine damage.
Q: How often should the DPF be checked?
A: The DPF should be checked during regular maintenance or if you notice any symptoms like increased exhaust smoke.
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