Operation CHARM: Car repair manuals for everyone.
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Part 2





2AZ-FXE ENGINE CONTROL SYSTEM: SFI SYSTEM: P043E, P043F, P2401, P2402, P2419: Evaporative Emission System Reference Orifice Clog Up
P2419 - Evaporative Emission System Switching Valve Control Circuit Low - continued


MONITOR STRATEGY





TYPICAL ENABLING CONDITIONS





Example of restart time

Example of restart time:





Key-off monitor sequence 1 to 15

1. Atmospheric pressure measurement

1. Atmospheric pressure measurement:





2. First reference pressure measurement

2. First reference pressure measurement:





3. Vent valve stuck closed check

3. Vent valve stuck closed check:





4. Vacuum introduction for canister

4. Vacuum introduction for canister:





5. Purge VSV stuck closed check

5. Purge VSV stuck closed check:





6. Second reference pressure measurement

6. Second reference pressure measurement:





7. Canister leak

7. Canister leak:





8. Fuel vapor-containment valve (FVCV stuck closed check)

8. Fuel vapor-containment valve (FVCV stuck closed check):





9. Vacuum introduction for fuel tank

9. Vacuum introduction for fuel tank:





10. FVCV stuck closed check

10. FVCV stuck closed check:





11. FTP sensor stuck check

11. FTP sensor stuck check:





12 Third reference pressure measurement

12 Third reference pressure measurement:





13. Fuel tank leak check

13. Fuel tank leak check:





14. FTP sensor stuck check

14. FTP sensor stuck check:





15. Atmospheric pressure measurement

15. Atmospheric pressure measurement:





TYPICAL MALFUNCTION THRESHOLDS

"Saturated" indicates that the EVAP pressure change is less than 0.1 kPa (0.75 mmHg) in 30 seconds.





MONITOR RESULT

Refer to CHECKING MONITOR STATUS Mode 6 Data.