What P1450 means
Unable To Bleed Up Fuel Tank Vacuum
Common causes (general)
Before spending money on parts, verify the code with a scan tool and read freeze frame data. Freeze frame captures every sensor value at the moment the code set — this is often enough to figure out the root cause without further testing.
Manufacturer-specific descriptions
Different manufacturers use this code for slightly different failure modes. Here's what your specific make means by P1450:
| BMW | Diagnostic Module Tank Leakage (DM-TL) Switching Solenoid Open Circuit; Diagnostic Module Tank Leakage (DM-TL) Switching Solenoid Control Open Circuit |
| BUICK | Barometric Pressure Sensor Circuit |
| CADILLAC | Barometric Pressure Sensor Circuit |
| CHEVY | Barometric Pressure Sensor Circuit |
| CHRYSLER | EGR Throttle Governor; Inability of Evaporative Emission Control System to Bleed Fuel Tank |
| FORD | Unable To Bleed Up Fuel Tank Vacuum Edge Products 1080 S. Depot Dr. Ogden, UT 84404 888-360-3343 www.edgeproducts.com Ford DTC Codes 16; Unable To Bleed Up Fuel Tank Vacuum |
| GEO | Barometric Pressure Sensor Circuit Fault |
| GM | Barometric Pressure Sensor Circuit |
| GMC | Barometric Pressure Sensor Circuit |
| KIA | Excessive Vacuum Leak |
| LINCOLN | Inability of Evaporative Emission Control System to Bleed Fuel Tank |
| MAZDA | Unable To Bleed Up Fuel Tank Vacuum |
| MERCURY | Inability of Evaporative Emission Control System to Bleed Fuel Tank |
| MITSUBISHI | Unable To Bleed Up Fuel Tank Vacuum |
| NISSAN | Unable To Bleed Up Fuel Tank Vacuum |
| OLDSMOBILE | Barometric Pressure Sensor Circuit |
| OTHER | Unable To Bleed Up Fuel Tank Vacuum |
| PLYMOUTH | Barometric Pressure Sensor Circuit |
| PONTIAC | Barometric Pressure Sensor Circuit |
| SATURN | Barometric Pressure Sensor Circuit |
| SUZUKI | Barometric Pressure Sensor Too Low Or Too High |
| VOLKSWAGEN | Barometric Pressure Sensor Circuit; Sec. Air Inj. Sys. Circ Short to B + |
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