What P0450 means
Evaporative Emission Control System Pressure Sensor Malfunction
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 P0450:
| BMW | Evaporative Emission System Pressure Sensor/Switch |
| FORD | Evap Emission Control System Pressure Sensor Malfunction |
| MITSUBISHI | Evaporative Emission Control System Pressure Sensor Malfunction; EVAP.emission pressure sensor |
| NISSAN | Evaporative Emission Control System Pressure Sensor Malfunction |
| VOLKSWAGEN | Fuel Tank Pressure Sensor Circuit |
Read this code on your own car
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