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Toyota Corolla Repair Manual: Evaporative emission control system pressure sensor

Toyota Corolla Repair Manual / Diagnostics / Sfi system / Evaporative emission control system pressure sensor

Dtc p0451 evaporative emission control system pressure sensor range/performance

Dtc p0452 evaporative emission control system pressure sensor/switch low input

Dtc p0453 evaporative emission control system pressure sensor/switch high input

Inspection procedure
Handheld tester: 1 Check fuel tank cap assy(check that fuel tank cap is toyota genuine parts) 2 Check that fuel tank cap is correctly installed 3 Inspect fuel tank cap assy 4 Check f ...

Monitor description
Dtc p0451, p0452 or p0453 is recorded by the ecm when the vapor pressure sensor malfunctions. P0451 The ecm senses pressure in the fuel tank using the vapor pressure sensor. The ecm supplies t ...

Other materials:

Inspection procedure
1 Check p/t squib(lh) circuit(airbag sensor assy center front seat outer belt assy lh) Disconnect the negative () terminal cable from the battery, and wait at least for 90 seconds.  disconnect the connectors between the airbag sensor assy center and the seat belt pretensioner ...

Circuit description
The rear heated oxygen sensor is used to monitor oxygen concentration in the exhaust gas. For optimum catalytic converter operation, the air fuel mixture must be maintained near the ideal stoichiometric ratio. The heated oxygen sensor output voltage changes suddenly in the vicinity of the ...

Precaution
1. Do not handle refrigerant in an enclosed area or near an open flame 2. Always wear eye protection 3. Be careful not to get liquid refrigerant in your eyes or on your skin If liquid refrigerant gets in your eyes or on your skin.  wash the area with lots of cool water. Cautio ...

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