Part 3
2AZ-FXE ENGINE CONTROL SYSTEM: SFI SYSTEM: EVAP System - Continued
Tester Display
Manual Operation Step
- Timing Chart
NEXT -- Continue to next step.
34. PERFORM SYSTEM CHECK (EVAPORATIVE SYSTEM CHECK (MANUAL OPERATION STEP 1))
(a) Select step 1 and wait 10 seconds.
NEXT -- Continue to next step.
35. PERFORM SYSTEM CHECK (EVAPORATIVE SYSTEM CHECK (MANUAL OPERATION STEP 2))
- (a) Perform step 2.
- (b) Check the EVAP pressure 2 seconds after the leak detection pump is activated*.
*: The leak detection pump begins to operate at the start of step 2.
- (c) Check the EVAP pressure again when it has stabilized. This pressure is the first reference pressure standard.
Result:
C -- REPLACE CANISTER ASSEMBLY
B -- PERFORM ACTIVE TEST USING TECHSTREAM (VACUUM PUMP)
A -- Continue to next step.
36. PERFORM SYSTEM CHECK (EVAPORATIVE SYSTEM CHECK (MANUAL OPERATION STEP 3))
- (a) Perform step 3.
- (b) Check the EVAP pressure change in step 3.
Result:
- (c) Check the fuel tank pressure change in step 3.
Result:
- (d) Check the EVAP pressure again when it has stabilized. This pressure is the canister leak pressure standard.
- (e) Compare the first reference pressure with the canister leak pressure.
Result:
D -- LOCATE EVAP LEAK PART (PURGE VSV - CANISTER)
C -- CHECK FUEL VAPOR-CONTAINMENT VALVE ASSEMBLY (POWER SOURCE CIRCUIT)
B -- INSPECT CANISTER PUMP MODULE (VENT VALVE OPERATION)
A -- Continue to next step.
37. PERFORM SYSTEM CHECK (EVAPORATIVE SYSTEM CHECK (MANUAL OPERATION STEP 4))
- (a) Perform step 4.
- (b) Check the EVAP pressure change in step 4.
Result:
B -- CHECK VACUUM HOSE (PURGE VSV - INTAKE MANIFOLD)
A -- Continue to next step.
38. PERFORM SYSTEM CHECK (EVAPORATIVE SYSTEM CHECK (MANUAL OPERATION STEP 5))
(a) Perform step 5 and wait 60 seconds.
(b) Check the EVAP pressure. This pressure is the second reference pressure standard.
NEXT -- Continue to next step.
39. PERFORM SYSTEM CHECK (EVAPORATIVE SYSTEM CHECK (MANUAL OPERATION STEP 6))
(a) Perform step 6 and wait 5 seconds.
NEXT -- Continue to next step.
40. PERFORM SYSTEM CHECK (EVAPORATIVE SYSTEM CHECK (MANUAL OPERATION STEP 7))
(a) Perform step 7.
(b) Check that the tank pressure and EVAP pressure change.
(c) Check the tank pressure again when it has stabilized. This pressure is the fuel tank leak pressure standard.
Result:
B -- CHECK FUEL VAPOR-CONTAINMENT VALVE ASSEMBLY (POWER SOURCE CIRCUIT)
A -- Continue to next step.
41. PERFORM SYSTEM CHECK (EVAPORATIVE SYSTEM CHECK (MANUAL OPERATION STEP 8))
(a) Perform step 8 and wait 60 seconds.
(b) Check the EVAP pressure. This pressure is the third reference pressure standard.
(c) Compare the tank pressure checked in step 8 with the third reference pressure.
Result:
B -- CHECK FUEL TANK CAP ASSEMBLY
A -- Continue to next step.
42. PERFORM CONFIRMATION DRIVING PATTERN
(a) KEY-OFF MONITOR DRIVE PATTERN
(1) Connect Techstream to the DLC3.
(2) Confirm the following conditions are satisfied:
- The fuel level is less than 90%.
- The altitude is less than 8,000 ft. (2,400 m).
- The vehicle is stopped (the vehicle speed is less than 2 mph).
- The ECT is 4.4 to 35°C (40 to 95°F.)
- The IAT is 4.4 to 35°C (40 to 95°F).
- Drive the vehicle in a city area or on free-way for 10 minutes or more.
(3) Perform the drive pattern:
1. Allow the engine to idle for 5 minutes or more.
2. Turn the power switch off and wait 6 hours.
(4) Check the monitor status with Techstream.
(b) PURGE FLOW MONITOR DRIVE PATTERN (P0441)
(1) Connect Techstream to the DLC3.
(2) Confirm that the following conditions are satisfied:
- The Engine Coolant Temperature (ECT) is more than 4.4°C (40°F).
- The Intake Air Temperature (IAT) is more than 4.4°C (40°F).
(3) Perform the drive pattern:
1. Remove and reinstall the fuel cap to release the fuel tank pressure.
2. Warm up the engine until the ECT reaches 75°C (167°F) or more.
3. Drive vehicle in a city area or on free-way for 10 minutes or more.
(4) Check the monitor status with Techstream.
NEXT -- PERFORM EVAP SYSTEM (EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC OPERATION))