Part 3

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

25. CHECK HARNESS AND CONNECTOR (TANK WIRE HARNESS)

(a) Remove the fuel tank assembly Removal.

(b) Disconnect the jP2 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) Reinstall the fuel tank assembly Installation.

Text in Illustration

(f) Reconnect the connectors.

(g) Reinstall the fuel tank assembly

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. CHECK HARNESS AND CONNECTOR (TANK WIRE HARNESS)

(a) Remove the fuel tank assembly Removal.

(b) Disconnect the jP2 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) Reinstall the fuel tank assembly Installation.

Text in Illustration

(f) Reconnect the connectors.

(g) Reinstall the fuel tank assembly

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

30. REPLACE FUEL VAPOR-CONTAINMENT VALVE

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

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

31. REPLACE FUEL TANK CAP ASSEMBLY

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

32. REPAIR OR REPLACE HARNESS OR CONNECTOR

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

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

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

34. 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 DTC Check / Clear.

(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 18 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.

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

(a) Select step 1 and wait 10 seconds.

NEXT -- Continue to next step.

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

(a) Perform step 2.

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

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

(d) Check the evaporative (EVAP) pressure again when it has stabilized. This pressure is the first reference pressure standard.

Result:

C -- REPLACE CANISTER

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

37. 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:

D -- CHECK HOSES (PURGE VSV - CANISTER)

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

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