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 system that checks for leaks in the fuel system. It's like a balloon that checks if any air is escaping. This code means the part that checks for leaks is stuck and can't stop working.
The EVAP system is responsible for capturing and recycling fuel vapors from the fuel tank to prevent them from escaping into the atmosphere. The leak detection pump is part of this system and is used to pressurize the system to check for leaks. If the pump is stuck on, it means it continues to operate when it shouldn't.
The P2DDB code indicates that the Engine Control Module (ECM) has detected that the EVAP system's leak detection pump is continuously operating when it should not be. This could be due to a mechanical fault in the pump or an electrical issue causing the pump to receive a constant power supply.
• Check Engine Light is on
• Possible fuel smell
• Failed emissions test
• Faulty leak detection pump
• Electrical short in the pump circuit
• Faulty ECM or control module
EVAP: Evaporative Emission Control System
ECM: Engine Control Module
• Use an OBD-II scanner to confirm the code.
• Inspect the leak detection pump for signs of damage or wear.
• Check the wiring and connectors for the pump circuit.
• Replace the leak detection pump if faulty.
• Repair or replace damaged wiring or connectors.
• Update or reprogram the ECM if necessary.
• OBD-II scanner
• Multimeter
• Wrench set
$150 - $400
Moderate
• Dodge Charger
• Jeep Grand Cherokee
• Chrysler 300
• Regularly inspect the EVAP system components.
• Ensure proper maintenance of the vehicle's electrical system.
• Use high-quality fuel to prevent contamination.
EVAP System Issue
• Avoid driving with a full tank until the issue is resolved.
• Seek professional diagnostic and repair services.
• Monitor for any unusual fuel smells.
Check with your vehicle manufacturer for potential warranty coverage on emissions-related components.
The P2DDB code is relatively uncommon and typically associated with specific vehicle models that use a particular type of EVAP system.
Moderate – While not immediately dangerous, it should be addressed to prevent emissions issues and potential fuel vapor leaks.
Driving with an active Check Engine Light related to emissions can result in failing emissions tests and may be illegal in some areas.
• Vehicle at operating temperature
• EVAP system readiness
The leak detection pump is typically located near the fuel tank or within the EVAP canister assembly.
Q: Can I drive with the P2DDB code?
A: While the car may still drive, it's best to address the issue to avoid potential emissions problems and fuel vapor leaks.
Q: Will this code affect my car's performance?
A: It may not directly affect performance, but it can cause emissions issues and may lead to a failed emissions test.
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Fitment Required · Vehicle-fitment part
Relevant when EVAP diagnosis points toward purge-flow or purge-control faults.
EVAP diagnosis often includes purge-flow and valve-control faults.
Confirm the failed valve and exact fitment before buying parts.
View options on AmazonThese parts may be related to this fault category, but a code by itself does not confirm exact fitment or guarantee that replacing a part will solve the problem.