Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the car's computer has detected a problem with the system that checks for leaks in the fuel system. It's like if you had a balloon with a tiny hole, and the pump that checks for that hole isn't working right.
The P1441 code indicates an issue with the electrical circuit that controls the leakage diagnostic pump, which is part of the evaporative emission control system.
The evaporative emission control system (EVAP) prevents fuel vapors from escaping into the atmosphere. The leakage diagnostic pump is responsible for pressurizing the system to check for leaks. If the control circuit is open or malfunctioning, the system cannot perform this check properly, leading to the P1441 code.
• Check Engine Light is on
• Possible fuel smell
• Failed emissions test
• Faulty leakage diagnostic pump
• Open or shorted wiring in the pump circuit
• Faulty EVAP system control module
EVAP: Evaporative Emission Control System
OBD-II: On-Board Diagnostics, Second Generation
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for the leakage diagnostic pump.
• Test the pump for proper operation.
• Repair or replace damaged wiring.
• Replace the leakage diagnostic pump.
• Replace the EVAP system control module if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $400
Moderate
• Chevrolet Silverado
• GMC Sierra
• Pontiac Grand Prix
• Regularly inspect EVAP system components.
• Ensure proper sealing of fuel cap.
• Perform regular vehicle maintenance.
Emission Control System Issue
• Do not ignore the Check Engine Light.
• Have the vehicle inspected by a professional.
• Avoid overfilling the fuel tank.
Check with the vehicle manufacturer for emissions-related warranty coverage.
This code has been associated with EVAP system issues in vehicles since the implementation of OBD-II standards.
Moderate – While it may not affect immediate drivability, it can lead to increased emissions and should be addressed promptly.
Driving with an emissions system malfunction may violate emissions laws and contribute to environmental pollution.
• Vehicle at operating temperature
• EVAP system readiness
The leakage diagnostic pump is typically located near the fuel tank or within the EVAP canister assembly.
Q: Can I drive with a P1441 code?
A: Yes, but it is not recommended to ignore it as it can lead to increased emissions and potential fuel system issues.
Q: Will a P1441 code affect my car's performance?
A: It may not affect performance immediately, but it can lead to a failed emissions test and potential fuel vapor leaks.
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Universal · Digital multimeter
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Helpful for checking voltage drops, grounds, and basic circuit health when modules are not communicating.
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Universal · Wire connectors and repair kit
Useful when diagnosis points toward damaged wiring, corroded terminals, or connector repairs.
Useful if diagnosis points toward damaged connectors, wiring, or terminal repairs.
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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.