Part 2

2GR-FXE ENGINE CONTROL: SFI SYSTEM: EVAP System
- EVAP System

Text in Illustration

(h) Reconnect the fuel vapor-containment valve connector.

B -- REPLACE FUEL VAPOR-CONTAINMENT VALVE
A -- Continue to next step.

24. CHECK HARNESS AND CONNECTOR (FUEL VAPOR-CONTAINMENT VALVE POWER SOURCE)

(a) Disconnect the fuel vapor-containment valve connector.

(b) Turn the power switch on (IG).

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

Standard Voltage:

Text in Illustration

(d) Reconnect the fuel vapor-containment valve connector.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

25. CHECK HARNESS AND CONNECTOR (TANK WIRE HARNESS)

(a) Remove the fuel tank assembly Removal.

(b) Disconnect the ECM connector.

(c) Disconnect the fuel vapor-containment valve connector.

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

Standard Resistance:

(e) Reconnect the fuel vapor-containment valve connector.

(f) Reconnect the ECM connector.

(g) Reinstall the fuel tank assembly Installation.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

26. REPLACE ECM

(a) Replace the ECM Removal.

NEXT -- PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)

27. REPLACE PURGE VSV

(a) Replace the purge VSV Removal.

NEXT -- PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)

28. REPLACE CANISTER

(a) Replace the canister Removal.

NEXT -- PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)

29. REPLACE FUEL VAPOR-CONTAINMENT VALVE

(a) Replace the fuel vapor-containment valve Removal.

NEXT -- PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)

30. REPLACE FUEL TANK CAP ASSEMBLY

NEXT -- PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)

31. REPAIR OR REPLACE HARNESS OR CONNECTOR

NEXT -- PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)

32. REPAIR OR REPLACE VACUUM HOSE (PURGE VSV - THROTTLE WITH MOTOR BODY ASSEMBLY)

NEXT -- PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)

33. PERFORM EVAPORATIVE SYSTEM CHECK (MANUAL MODE)

HINT
In the manual operation check, the EVAP system can be checked in several steps. Valve operation and pressure in each step can also be checked.

(a) Clear the DTCs Reading and Clearing Diagnostic Trouble Codes.

(b) Remove the fuel tank cap and reinstall the fuel tank cap.

(c) Enter the following menus: Powertrain / Engine and ECT / Utility / Evaporative System Check / Manual Mode.

NOTICE:
* In the Evaporative System Check (Manual Mode), the series of 9 Evaporative System Check steps is performed automatically. It takes a maximum of approximately 34 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, making the leak check of the fuel tank impossible.
* Do not run the engine in this step.
* When the temperature of the fuel is 35°C (95°F) or more, a large amount of vapor forms and any check results become inaccurate. When performing the Evaporative System Check, keep the temperature below 35°C (95°F).

Tester Display

Manual Operation Step

NEXT -- Continue to next step.

34. PERFORM EVAPORATIVE SYSTEM CHECK (MANUAL MODE STEP 1)

(a) Select step 1 and wait 10 seconds.

NEXT -- Continue to next step.

35. PERFORM EVAPORATIVE SYSTEM CHECK (MANUAL MODE STEP 2)

(a) Perform step 2.

(b) Check the evaporative pressure 2 seconds after the leak detection pump is activated*. (step b)

*: The leak detection pump begins to operate at the start of step 2.

Result:

B -- CHECK CANISTER PUMP MODULE (LEAK DETECTION PUMP POWER SOURCE CIRCUIT)

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

36. PERFORM EVAPORATIVE SYSTEM CHECK (MANUAL MODE STEP 3)

(a) Perform step 3.

(b) Check the evaporative (EVAP) pressure change in step 3. (step b)

Result:

(d) Check the evaporative 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:

B -- CHECK CANISTER PUMP MODULE (VENT VALVE POWER SOURCE CIRCUIT)

C -- CHECK FUEL VAPOR-CONTAINMENT VALVE ASSEMBLY (POWER SOURCE CIRCUIT)

D -- CHECK HOSES (PURGE VSV - CANISTER)
A -- Continue to next step.

37. PERFORM EVAPORATIVE SYSTEM CHECK (MANUAL MODE STEP 4)

(a) Perform step 4.

(b) Check the evaporative (EVAP) pressure change in step 4. (step b)

Result:

B -- CHECK VACUUM HOSE (PURGE VSV - INTAKE AIR SURGE TANK ASSEMBLY)
A -- Continue to next step.

38. PERFORM EVAPORATIVE SYSTEM CHECK (MANUAL MODE STEP 5)

(a) Perform step 5 and wait 60 seconds.

(b) Check the evaporative (EVAP) pressure. This pressure is the second reference pressure.

NEXT -- Continue to next step.

39. PERFORM EVAPORATIVE SYSTEM CHECK (MANUAL MODE STEP 6)

(a) Perform step 6 and wait 5 seconds.

NEXT -- Continue to next step.

40. PERFORM EVAPORATIVE SYSTEM CHECK (MANUAL MODE 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 EVAPORATIVE SYSTEM CHECK (MANUAL MODE STEP 8)

(a) Perform step 8 and wait 60 seconds.

(b) Check the evaporative (EVAP) pressure. This pressure is the third reference pressure.

(c) Compare the tank pressure checked in step 41 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 the Techstream to the DLC3.

(2) Confirm the following conditions are satisfied:

^ The fuel level is less than 90%.
^ The altitude is less than 7874 ft. (2400 m).
^ The vehicle is stopped (the vehicle speed is less than 2 mph (3.2 km/h).
^ The engine coolant temperature is 4.4 to 35°C (40 to 95°F)
^ The intake air temperature is 4.4 to 35°C (40 to 95°F)
(3) Perform the following drive pattern:

^ Allow the engine to idle for 5 minutes or more.
^ Turn the power switch off and wait 6 hours.
(4) Check the monitor status with the Techstream.

(b) Purge Flow Monitor Drive Pattern (P0441)

(1) Connect the Techstream to the DLC3.

(2) Confirm that the following conditions are satisfied:

^ The engine coolant temperature is more than 4.4°C (40°F).
^ The intake air temperature is more than 4.4°C (40°F).
(3) Perform the following drive pattern:

1. Remove and reinstall the fuel cap to release the fuel tank pressure.
2. Put the engine in inspection mode Component Tests and General Diagnostics.
3. Warm up the engine until the engine coolant temperature reaches 75°C (167°F) or more.
4. Run the engine at 3000 rpm once.
(4) Check the monitor status with the Techstream.

NEXT -- PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)

43. CHECK VACUUM HOSE (PURGE VSV - INTAKE AIR SURGE TANK ASSEMBLY)

(a) Disconnect the hose (to the intake air surge tank assembly) from the purge VSV.

(b) Put the engine in inspection mode Component Tests and General Diagnostics.

(c) Start the engine.

(d) Use your finger and confirm that the hose has suction.

Text in Illustration

Result:

(e) Reconnect the hose.

NG -- REPAIR OR REPLACE VACUUM HOSE (PURGE VSV - THROTTLE WITH MOTOR BODY ASSEMBLY)
OK -- Continue to next step.

44. PERFORM ACTIVE TEST USING TECHSTREAM (PURGE VSV)

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(c) Turn the Techstream on.

(d) Put the engine in inspection mode Component Tests and General Diagnostics.

(e) Enter the following menus: Powertrain / Engine and ECT / Active Test / Activate the VSV for Evap Control.

(f) Disconnect the hose (connected to the canister) from the purge VSV.

Text in Illustration

(g) Start the engine.

(h) Using the Techstream, turn off the purge VSV (Activate the VSV for Evap Control: OFF).

(i) Use your finger to confirm that the purge VSV has no suction.

(j) Using the Techstream, turn on the purge VSV (Activate the VSV for Evap Control: ON).

(k) Use your finger to confirm that the purge VSV has suction.

Result:

(l) Reconnect the hose.

B -- CHECK HOSES (PURGE VSV - CANISTER)
A -- Continue to next step.

45. CHECK PURGE VSV

(a) Remove the purge VSV.

(b) Apply auxiliary battery voltage to the purge VSV.

(c) While applying compressed air, confirm that air flows from A to B as shown in the illustration.

Text in Illustration

Result:

(d) Reinstall the purge VSV.

NG -- REPLACE PURGE VSV
OK -- Continue to next step.

46. CHECK HARNESS AND CONNECTOR (PURGE VSV - EFI NO. 2 FUSE)

(a) Disconnect the purge VSV connector.

(b) Turn the power switch on (IG).

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

Text in Illustration

Result:

(d) Reconnect the connector.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

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

(a) Disconnect the ECM connector and the purge VSV connector.

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

Standard Resistance:

(c) Reconnect the ECM connector and purge VSV connector.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

48. REPLACE ECM

(a) Replace the ECM Removal.

NEXT -- PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)

49. CHECK CANISTER PUMP MODULE (LEAK DETECTION PUMP POWER SOURCE CIRCUIT)

(a) Turn the power switch off.

(b) Disconnect the canister pump module connector.

(c) Connect the Techstream to the DLC3.

(d) Turn the power switch on (IG).

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

(f) Turn the vacuum pump on using the Techstream.

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

Text in Illustration

Standard Voltage:

Result:

(h) Reconnect the canister pump module connector.

B -- CHECK CANISTER PUMP MODULE (VENT VALVE POWER SOURCE CIRCUIT)
A -- Continue to next step.

50. CHECK HARNESS AND CONNECTOR (LEAK DETECTION PUMP - BODY GROUND)

(a) Disconnect the canister pump module connector.

(b) Turn the power switch off.

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

Standard Resistance:

(d) Reconnect the canister pump module connector.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

51. CHECK HARNESS AND CONNECTOR (LEAK DETECTION PUMP - ECM)

(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.

Standard Resistance:

(d) Reconnect the canister pump module connector.

(e) Reconnect the ECM connector.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

52. REPLACE ECM

(a) Replace the ECM Removal.

NEXT -- PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)

53. CHECK CANISTER PUMP MODULE (VENT VALVE POWER SOURCE CIRCUIT)

(a) Turn the power switch off.

(b) Disconnect the canister pump module connector.

Standard Voltage:

Result:

(h) Reconnect the canister pump module connector.

Reinstall the canister lower cover.

B -- CHECK HARNESS AND CONNECTOR (VENT VALVE - ECM)
A -- Continue to next step.

54. CHECK HARNESS AND CONNECTOR (VENT VALVE - BODY GROUND)

(a) Turn the power switch off.

(b) Disconnect the canister pump module connector.

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

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

Text in Illustration

Result:

(e) Reconnect the canister pump module connector.

(f) Reinstall the canister lower cover.

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

55. CHECK HARNESS AND CONNECTOR (VENT VALVE - ECM)

(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.

Standard Resistance:

(d) Reconnect the ECM connector.

(e) Reconnect the canister pump module connector.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

56. REPLACE ECM

(a) Replace the ECM Removal.

NEXT -- PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)

57. CHECK HOSES (PURGE VSV - CANISTER)

(a) Remove the canister lower cover.

(b) Connect the pressure gauge to the canister pump module with the adapter.

(c) Connect the Techstream to the DLC3.

(d) Turn the power switch on (IG).

(e) Enter the following menus: Powertrain / Engine and ECT / Active Test / Activate the Fuel Vapor-Containment Valve.

(f) Turn the fuel vapor-containment valve ON using the Techstream.

(g) Pressurize the EVAP system to between 3.2 and 3.7 kPa(gauge) (24 and 28 mmHg(gauge)).

NOTICE:
More than 4.7 kPa(gauge) (35 mmHg(gauge)) of pressure will damage the EVAP system. Pay attention to the pressure.

(h) Apply soapy water to the piping and connections of the EVAP system. Look for the area where bubbles appear.

HINT
* If the system has leaks, a whistling sound will be heard.
* Disconnect the hose between the canister and fuel tank from the canister. Close the canister on the area where the hose was connected and perform an inspection. The fuel tank and fuel vapor containment valve can be eliminated from the suspected areas for leak checks.

(i) Reinstall the canister lower cover.

Text in Illustration

NEXT -- Continue to next step.

58. REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA

NEXT -- PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)

59. CHECK FUEL VAPOR-CONTAINMENT VALVE ASSEMBLY (POWER SOURCE CIRCUIT)

(a) Turn the power switch off.

(b) Disconnect the fuel vapor-containment valve connector.

(c) Connect the Techstream to the DLC3.

(d) Turn the power switch on (IG).

(e) Enter the following menus: Powertrain / Engine and ECT / Active Test / Activate the Fuel Vapor-Containment Valve.

(f) Turn the fuel vapor-containment valve ON using the Techstream.

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

Standard Voltage:

Result:

Text in Illustration

(h) Reconnect the fuel vapor-containment valve connector.

B -- REPLACE FUEL VAPOR-CONTAINMENT VALVE
A -- Continue to next step.

60. CHECK HARNESS AND CONNECTOR (FUEL VAPOR-CONTAINMENT VALVE POWER SOURCE)

(a) Disconnect the fuel vapor-containment valve connector.

(b) Turn the power switch on (IG).

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

Standard Voltage:

Text in Illustration

(d) Reconnect the fuel vapor-containment valve connector.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

61. CHECK HARNESS AND CONNECTOR (FUEL VAPOR-CONTAINMENT VALVE - ECM)

(a) Remove the fuel tank assembly Removal.

(b) Disconnect the ECM connector.

(c) Disconnect the fuel vapor-containment valve connector.

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

Standard Resistance: