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 is having trouble letting air into the fuel tank. Imagine if you were trying to drink from a straw, but the straw was sealed at the top. The air can't get in, so it doesn't work right.
The P1450 code is triggered when the Powertrain Control Module (PCM) detects that the fuel tank cannot bleed up the vacuum during the engine operation.
The P1450 code indicates that the evaporative emission control system is unable to release the vacuum in the fuel tank. This can occur if the fuel tank pressure sensor detects that the pressure is too low for an extended period, suggesting a blockage or malfunction in the system.
• Check Engine Light is on
• Difficulty filling the fuel tank
• Poor fuel economy
• Faulty fuel tank pressure sensor
• Blocked or kinked EVAP canister vent hose
• Malfunctioning EVAP canister vent valve
PCM: Powertrain Control Module
EVAP: Evaporative Emission Control System
• Scan the vehicle for codes and freeze frame data.
• Inspect the EVAP system for blockages or damage.
• Test the fuel tank pressure sensor for proper operation.
• Replace the faulty fuel tank pressure sensor.
• Clear any blockages in the EVAP system.
• Replace the EVAP canister vent valve if defective.
• OBD-II scanner
• Multimeter
• Vacuum pump
$150 - $400
Moderate
• Ford Fusion
• Ford Escape
• Lincoln MKZ
• Regularly inspect the EVAP system components.
• Ensure fuel cap is properly tightened.
• Avoid overfilling the fuel tank.
Emission Control System Issue
• Do not ignore the Check Engine Light.
• Have the vehicle inspected by a professional mechanic.
• Avoid topping off the fuel tank.
Check with the vehicle manufacturer as emissions-related components may be covered under warranty.
The P1450 code has been commonly reported in Ford vehicles, often related to issues in the EVAP system.
Moderate – While the vehicle may still run, it can lead to increased emissions and potential fuel system damage if not addressed.
Driving with a malfunctioning EVAP system can lead to increased emissions, which may not comply with local environmental regulations.
• Engine running
• Fuel tank at least 15% full
The EVAP canister and associated components are typically located near the fuel tank or along the vehicle's undercarriage.
Q: Can I drive with a P1450 code?
A: Yes, but it's not recommended to drive for extended periods as it can lead to increased emissions and potential damage.
Q: Will a P1450 code affect my vehicle's performance?
A: It may cause difficulty in refueling and could lead to poor fuel economy.
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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.