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Home >> Toyota >> 2014 >> Highlander XLE, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 171 (SFI System [2GR-FXE] - Diagnostic Codes - (Hybrid) (3 Of 3)) >> SFI System >> DTC P2450: Fuel Vapor-containment Valve Stuck Open; DTC P2451: Fuel Vapor-containment Valve Stuck Closed [02/2014 - 11/2015] >> Typical Malfunction Thresholds

Typical Malfunction Thresholds

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P2450: FUEL VAPOR-CONTAINMENT VALVE STUCK OPEN

Either of the following conditions is met when fuel tank pressure is between -2 kPa(gauge) [-15 mmHg(gauge)] and 3 kPa(gauge) [22.5 mmHg(gauge)] Condition 1 or 2
1. Fuel tank pressure change when vacuum introduction for canister Higher than 0.5 kPa(gauge) [3.75 mmHg(gauge)]
2. Canister pressure when vacuum introduction for canister was complete Higher than [third reference pressure x 0.2]
P2451: FUEL VAPOR-CONTAINMENT VALVE STUCK CLOSED

Either of the following conditions is met Condition 1 or 2
1. Both of the conditions below are met Condition (a) and (b)
(a) Fuel tank pressure Higher than -2 kPa(gauge) [-15 mmHg(gauge)], and less than 3 kPa(gauge) [22.5 mmHg(gauge)]
(b) Fuel tank pressure change when vacuum introduction for fuel tank Less than 0.5 kPa(gauge) [3.75 mmHg(gauge)]
2. Both of the conditions below are met Condition (a) and (b)
(a) Fuel tank pressure -2 kPa(gauge) [-15 mmHg(gauge)] or less, or 3 kPa(gauge) [22.5 mmHg(gauge)] or higher
(b) Canister pressure change when fuel vapor-containment valve is open Less than 0.9 kPa(gauge) [6.75 mmHg(gauge)]
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