Unable to Bleed Up Fuel Tank Vacuum
2013-2016 Mazda CX-5 2.0L I4 🇦🇺
Description
The EVAP system has detected excessive vacuum in the fuel tank that cannot be relieved. The system is unable to bleed off tank vacuum, which can be caused by a stuck vent solenoid or restricted EVAP hoses.
Symptoms
- Check Engine Light
- Difficulty refueling
- Slow fuel fill at pump
- Hard starts after refueling
- Possible stalling
Common Causes
- Canister vent solenoid stuck closed
- EVAP purge valve stuck open
- Kinked or collapsed EVAP hose
- Fuel filler cap stuck or defective
- Blocked canister vent filter
Diagnostic Steps
- Check fuel tank pressure sensor reading
- Inspect canister vent solenoid operation
- Check purge valve operation
- Inspect all EVAP hoses for kinks or collapse
- Check gas cap or capless filler
Repair Notes
Replace the canister vent solenoid if stuck closed; inspect EVAP hoses for kinks.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
P1450 on Other Vehicles
Common Questions
What does code P1450 mean on a 2013-2016 Mazda CX-5?
P1450 stands for "Unable to Bleed Up Fuel Tank Vacuum". The EVAP system has detected excessive vacuum in the fuel tank that cannot be relieved. The system is unable to bleed off tank vacuum, which can be caused by a stuck vent solenoid or restricted EVAP hoses.
What are the symptoms of P1450 on a Mazda CX-5?
Common symptoms of P1450 include: Check Engine Light, Difficulty refueling, Slow fuel fill at pump, Hard starts after refueling, Possible stalling.
What causes P1450 on a 2013-2016 Mazda CX-5?
Common causes of P1450 include: Canister vent solenoid stuck closed, EVAP purge valve stuck open, Kinked or collapsed EVAP hose, Fuel filler cap stuck or defective, Blocked canister vent filter.