Part 3

2ZR-FXE ENGINE CONTROL: SFI SYSTEM: EVAP System
- EVAP System (Continued)

13. CHECK FUEL TANK CAP ASSEMBLY

(a) Check that the fuel cap is correctly installed and confirm that the fuel cap meets OEM specifications.

(b) Tighten the fuel cap until a few click sounds are heard.

HINT
If an EVAP tester is available, check the fuel cap using the Techstream.

(a) Remove the fuel cap and install it onto a fuel cap adapter.
(b) Connect an EVAP tester pump hose to the adapter, and pressurize the cap to 3.2 to 3.7 kPa (gauge) [24 to 28 mmHg (gauge)] using an EVAP tester pump.
(c) Seal the adapter and wait for 2 minutes.
(d) Check the pressure. If the pressure is 2 kPa (gauge) [15 mmHg (gauge)] or more, the fuel cap is normal.

Result





C -- REPLACE FUEL TANK CAP ASSEMBLY

B -- CORRECTLY REINSTALL OR REPLACE FUEL TANK CAP ASSEMBLY

A -- LOCATE EVAP LEAK PART

14. INSPECT PURGE VSV

(a) Turn the power switch off.





(b) Disconnect the purge VSV connector.

Text in Illustration





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

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

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

(f) Start the engine.

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

Result





B -- REPLACE PURGE VSV

A -- REPLACE ECM

15. CHECK EVAP HOSE (PURGE VSV - INTAKE AIR SURGE TANK ASSEMBLY)

(a) Disconnect the hose (connected to the intake manifold sub-assembly) from the purge VSV.





Text in Illustration





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

(c) Start the engine.

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

Result





B -- INSPECT INTAKE MANIFOLD (EVAP PURGE PORT)
A -- Continue to next step.

16. INSPECT PURGE VSV





(a) Remove the purge VSV.

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

Text in Illustration





(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 power switch on (IG).

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

Result





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 and the purge VSV connector.

(b) 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 power switch off.





(b) Disconnect the canister pump module connector.

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

(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 power switch off.





(b) Disconnect the canister pump module connector.

(c) Apply battery voltage to the 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





B -- REPLACE CANISTER ASSEMBLY
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 (ACTIVE THE VACUUM PUMP)

(a) Turn the power switch off.





(b) Disconnect the canister pump module connector.

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

(d) Enter the following menus: Powertrain / Engine and ECT / 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 power switch off.





(b) Disconnect the canister pump module connector.

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

Result





Text in Illustration





B -- REPAIR OR REPLACE HARNESS OR CONNECTOR

A -- REPLACE CANISTER ASSEMBLY

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

(a) Turn the power 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 EVAP hose from the intake manifold.

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

(d) Start the engine.

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

Result





B -- INSPECT INTAKE MANIFOLD (EVAP PURGE PORT)

A -- REPLACE EVAP HOSE (INTAKE AIR SURGE TANK ASSEMBLY - PURGE VSV)