Part 2

2AR-FE ENGINE CONTROL: SFI SYSTEM: EVAP System
- EVAP System (Continued)

16. INSPECT PURGE VSV

(a) Remove the purge VSV Removal.

(b) Apply battery voltage to the terminals of the purge VSV.

(c) Using an air gun, confirm that air flows from port A to port B.

Result

B -- REPLACE PURGE VSV
A -- Continue to next step.

17. CHECK HARNESS AND CONNECTOR (POWER SOURCE OF PURGE VSV)

(a) Disconnect the purge VSV connector.

(b) Turn the ignition switch to ON.

(c) Measure the voltage according to the value(s) in the table below.

Result

Text in Illustration

B -- REPAIR OR REPLACE HARNESS OR CONNECTOR
A -- Continue to next step.

18. CHECK HARNESS AND CONNECTOR (PURGE VSV - ECM)

(a) Disconnect the ECM connector.

(b) Disconnect the purge VSV connector.

(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE ECM

19. INSPECT CANISTER PUMP MODULE (POWER SOURCE FOR VENT VALVE)

(a) Turn the ignition switch off.

(b) Disconnect the canister pump module connector.

(c) Turn the ignition switch to ON.

(d) Measure the voltage according to the value(s) in the table below.

Result

Text in Illustration

B -- REPAIR OR REPLACE HARNESS OR CONNECTOR
A -- Continue to next step.

20. INSPECT CANISTER PUMP MODULE (VENT VALVE OPERATION)

(a) Turn the ignition switch off.

(b) Disconnect the canister pump module connector.

(c) Apply battery voltage to terminals 5 (VLVB) and 1 (VGND) of the canister pump module.

(d) Touch the canister pump module to confirm the vent valve operation.

Result

Text in Illustration

B -- REPLACE CANISTER
A -- Continue to next step.

21. CHECK HARNESS AND CONNECTOR (ECM - CANISTER PUMP MODULE)

(a) Disconnect the ECM connector.

(b) Disconnect the canister pump module connector.

(c) Measure the resistance according to the value(s) in the table below.

Result

B -- REPAIR OR REPLACE HARNESS OR CONNECTOR

A -- REPLACE ECM

22. PERFORM ACTIVE TEST USING TECHSTREAM (VACUUM PUMP (ALONE))

(a) Turn the ignition switch off.

(b) Disconnect the canister pump module connector.

(c) Turn the ignition switch to ON.

(d) Enter the following menus: Powertrain / Engine / Active Test / Activate the Vacuum Pump.

(e) Measure the voltage according to the value(s) in the table below.

Result

Text in Illustration

C -- REPLACE ECM

B -- CHECK HARNESS AND CONNECTOR (ECM - CANISTER PUMP MODULE)
A -- Continue to next step.

23. CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - BODY GROUND)

(a) Turn the ignition switch off.

(b) Disconnect the canister pump module connector.

(c) Measure the resistance according to the value(s) in the table below.

Result

B -- REPAIR OR REPLACE HARNESS OR CONNECTOR

A -- REPLACE CANISTER

24. CHECK HARNESS AND CONNECTOR (ECM - CANISTER PUMP MODULE)

(a) Turn the ignition switch off.

(b) Disconnect the canister pump module connector.

(c) Disconnect the ECM connector.

(d) Measure the resistance according to the value(s) in the table below.

Result

B -- REPAIR OR REPLACE HARNESS OR CONNECTOR

A -- REPLACE ECM

25. INSPECT INTAKE MANIFOLD (EVAP PURGE PORT)

(a) Stop the engine.

(b) Disconnect the purge line from the intake manifold.

(c) Start the engine.

(d) Use your finger to confirm that the port of the intake manifold has suction.

Result

(e) Reconnect the purge line.

B -- INSPECT INTAKE MANIFOLD (EVAP PURGE PORT)

A -- REPLACE PURGE LINE (INTAKE MANIFOLD - PURGE VSV)

26. CORRECTLY REINSTALL OR REPLACE FUEL TANK CAP ASSEMBLY

HINT
* When reinstalling the fuel tank cap, tighten it until a click sound is heard.
* When replacing the fuel tank cap, use a fuel tank cap that meets OEM specifications, and tighten it until a click sound is heard.

NEXT -- PERFORM EVAP SYSTEM CHECK (AUTO OPERATION)

27. REPLACE FUEL TANK CAP ASSEMBLY

HINT
When replacing the fuel cap, use a fuel cap that meets OEM specifications, and tighten it until a click sound is heard.

NEXT -- PERFORM EVAP SYSTEM CHECK (AUTO OPERATION)

28. LOCATE EVAP LEAK PART

Text in Illustration

(a) Disconnect the vent hose.

(b) Connect an EVAP tester to the canister pump module with an adapter.

(c) Pressurize the EVAP system to 3.2 to 3.7 kPa (24 to 28 mmHg).

(d) Apply soapy water to the piping and connecting parts of the EVAP system.

(e) Look for areas where bubbles appear. This indicates the leak point.

(f) Repair or replace the leak point.

HINT
Disconnect the hose between the canister and fuel tank from the canister. Block the canister side and conduct an inspection. This way, the fuel tank can be excluded as an area suspected of causing fuel leaks.

NEXT -- PERFORM EVAP SYSTEM CHECK (AUTO OPERATION)

29. REPLACE CANISTER

(a) Replace the canister Removal.

NOTICE:
When replacing the canister, check the canister pump module interior and related pipes for water, fuel and other liquids. If liquids are present, check for disconnections and/or cracks in the following: 1) the pipe from the air inlet port to the canister pump module; 2) the canister filter; and 3) the fuel tank vent hose.

Text in Illustration

NEXT -- PERFORM EVAP SYSTEM CHECK (AUTO OPERATION)

30. REPLACE PURGE VSV

(a) Replace the purge VSV Removal.

NEXT -- PERFORM EVAP SYSTEM CHECK (AUTO OPERATION)

31. REPAIR OR REPLACE HARNESS OR CONNECTOR

NEXT -- PERFORM EVAP SYSTEM CHECK (AUTO OPERATION)

32. REPLACE PURGE LINE (INTAKE MANIFOLD - PURGE VSV)

NEXT -- PERFORM EVAP SYSTEM CHECK (AUTO OPERATION)

33. INSPECT INTAKE MANIFOLD (EVAP PURGE PORT)

(a) Check that the EVAP purge port of the intake manifold is not clogged.

If necessary, replace the intake manifold.

NEXT -- PERFORM EVAP SYSTEM CHECK (AUTO OPERATION)

34. REPLACE ECM

(a) Replace the ECM Removal.

NEXT -- PERFORM EVAP SYSTEM CHECK (AUTO OPERATION)

35. REPAIR OR REPLACE PARTS AND COMPONENTS INDICATED BY OUTPUT DTCS

(a) Repair the malfunctioning areas indicated by the DTCs that were confirmed when the vehicle was brought in.

NEXT -- Continue to next step.

36. PERFORM EVAP SYSTEM CHECK (AUTO OPERATION)

NOTICE:
* The Evaporative System Check (Automatic Mode) consists of 5 steps performed automatically by the Techstream. It takes a maximum of approximately 23 minutes.
* Do not perform the Evaporative System Check when the fuel tank is more than 90% full because the cut-off valve may be closed. If the cut-off valve is closed, the fuel tank leak check is not possible.
* Do not run the engine in this step.
* When the temperature of the fuel is 35°C (95°F) or higher, a large amount of vapor forms and any check results become inaccurate. When performing an Evaporative System Check, keep the temperature below 35°C (95°F).

(a) Clear the DTCs DTC Check / Clear.

(b) Enter the following menus: Powertrain / Engine / Utility / Evaporative System Check / Automatic Mode.

(c) After the Evaporative System Check is completed, check for pending DTCs by entering the following menus: Powertrain / Engine / Trouble Codes / Pending.

HINT
If no pending DTCs are output, the repair has been successfully completed.

NEXT -- END

CONFIRMATION DRIVING PATTERN

HINT
After a repair, check Monitor Status by performing the Key-off Monitor Confirmation and Purge Flow Monitor Confirmation described below.

1. KEY-OFF MONITOR CONFIRMATION

(a) Preconditions

The monitor will not run unless:

* The vehicle has been driven for 10 minutes or more (in a city area or on a freeway)

* The fuel tank is less than 90% full

* The elevation is less than 2438 m (8000 ft.)

* The engine coolant temperature is between 4.4°C and 35°C (40°F and 95°F)

* The intake air temperature is between 4.4°C and 35°C (40°F and 95°F)

* The vehicle remains stationary (the vehicle speed is 0 km/h [0 mph])

(b) Monitor Conditions

(1) Allow the engine to idle for at least 5 minutes.

(2) Turn the ignition switch off and wait for 6 hours (or 8 or 10.5 hours).

HINT
Do not start the engine until checking Monitor Status. If the engine is started, the steps described above must be repeated.

(c) Monitor Status

(1) Connect the Techstream to the DLC3.

(2) Turn the ignition switch to ON and turn the Techstream on.

(3) Enter the following menus: Powertrain / Engine / Monitor / Current Monitor / Evaporative System.

(4) Check Monitor Status displayed on the Techstream.

HINT
If Incomplete is displayed, the monitor is not complete. Make sure that the preconditions have been met, and then perform the operations listed under Monitor Conditions again.

2. PURGE FLOW MONITOR CONFIRMATION (P0441)

HINT
Perform this monitor confirmation after the Key-off Monitor Confirmation shows Complete.

(a) Preconditions

The monitor will not run unless:

* The vehicle has been driven for 10 minutes or more (in a city area or on a freeway)

* The engine coolant temperature is between 4.4 and 35°C (40 and 95°F)

* The intake air temperature is between 4.4 and 35°C (40 and 95°F)

(b) Monitor Conditions

(1) Release the pressure from the fuel tank by removing and reinstalling the fuel cap.

(2) Warm the engine up until the engine coolant temperature reaches a temperature higher than 75°C (167°F).

(3) Increase the engine speed to 3000 rpm once.

(4) Allow the engine to idle and turn the A/C on for 1 minute.

(c) Monitor Status

(1) Turn the ignition switch off (if ON or if the engine is running).

(2) Connect the Techstream to the DLC3.

(3) Turn the ignition switch to ON and turn the Techstream on.

(4) Enter the following menus: Powertrain / Engine / Monitor / Current Monitor.

(5) Check Monitor Status displayed on the Techstream.

HINT
If Incomplete is displayed, the monitor is not complete. Make sure that the preconditions have been met, and then perform the operations listed under Monitor Conditions again.

MONITOR RESULT

Refer to detailed information in Checking Monitor Status Mode 6 Data.

P0456: Evaporative System / SMALL LEAK