DTC P1450:00: Notes

DTC P1450:00	Unable to bleed up fuel tank vacuum
DETECTION CONDITION	P1450:00 indicates the Self Test has detected that the EVAP system is unable to bleed up fuel tank vacuum. Diagnostic support note This is an intermittent monitor (EVAP system). The MIL illuminates if the PCM detects the above malfunction conditions in two consecutive drive cycles or in one drive cycle while the DTC for the same malfunction has been stored in the PCM. PENDING CODE is available if the PCM detects the above malfunction condition during first drive cycle. FREEZE FRAME DATA (Mode 2)/Snapshot data is available. The DTC is stored in the PCM memory.
POSSIBLE CAUSE	Excessive fuel tank vacuum Kinks or bends in the fuel vapor hoses and tubes Charcoal canister inlet port, CV solenoid valve, EVAP dust separator or outlet hose for contamination or foreign material CV solenoid valve malfunction Stuck open or close Fuel tank pressure sensor malfunction (built-in evaporative hose component) PCM malfunction