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TYPICAL ENABLING CONDITIONS - P0451 P0452 and P0453: TYPICAL ENABLING CONDITIONS - P0452 AND P0453 TYPICAL MALFUNCTION THRESHOLDS P0451: Canister pressure sensor noise TYPICAL MALFUNCTION THRESHOLDS - P0451 P0451: Canister pressure sensor fixed/flat TYPICAL MALFUNCTION THRESHOLDS - P0451 P0452: Canister pressure sensor low voltage TYPICAL MALFUNCTION THRESHOLDS - P0452 P0453: Canister pressure sensor high voltage TYPICAL MALFUNCTION THRESHOLDS - P0453 WIRING DIAGRAM Monitor runs whenever following DTCs not P0452, P0453 (EVAP System) Battery voltage 10.5 V or more Intake air temperature 4.4 to 35°C (40 to 95°F) Atmospheric pressure (absolute pressure) Less than 70 kPa-a (525 mmHg-a) or 110 kPa-a (825 Time after key off 5 or 7 or 9.5 hours Monitor runs whenever following DTCs not present None Either of following conditions met (a) or (b) (a) Ignition switch ON (b) Soak timer ON Frequency that EVAP pressure change 0.3 kPa-g (2.25 mmHg-g) or more 10 times or more in 10 seconds EVAP pressure change during reference pressure Less than 0.65 kPa-g (4.87 mmHg-g) EVAP pressure Less than 42.1 kPa-a (315.9 mmHg-a) EVAP pressure More than 123.8 kPa-a (928.4 mmHg-a)
2009 Toyota Tundra 2009 ENGINE PERFORMANCE Engine Control System (3UR-FBE) - Tundra
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