Part 2
2GR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: EVAP System - Continued
15. CHECK EVAP HOSE (PURGE VSV - THROTTLE BODY)
(a) Disconnect the hose (connected to the throttle body) from the purge VSV.
(b) Start the engine.
(c) Confirm that the hose has suction with your fingers.
Result:
(d) Reconnect the hose.
B -- INSPECT THROTTLE WITH MOTOR BODY ASSEMBLY
A -- Continue to next step.
16. INSPECT VACUUM SWITCHING VALVE NO. 1 (PURGE VSV)
(a) Remove the purge VSV.
(b) Apply battery voltage to the terminals of the purge VSV.
(c) Using compressed air, confirm that air flows from port A to port B.
Result:
(d) Install the purge VSV.
B -- REPLACE VACUUM SWITCHING VALVE NO. 1 (PURGE VSV)
A -- Continue to next step.
17. CHECK HARNESS AND CONNECTOR (POWER SOURCE OF PURGE VSV)
(a) Disconnect the V3 purge VSV connector.
(b) Turn the ignition switch to the ON position.
(c) Measure the voltage between terminal 1 of the purge VSV connector and body ground.
Result:
(d) Reconnect the purge VSV connector.
B -- REPAIR OR REPLACE HARNESS OR CONNECTOR
A -- Continue to next step.
18. CHECK HARNESS AND CONNECTOR (PURGE VSV - ECM)
(a) Disconnect the E8 ECM connector and the V3 purge VSV connector.
(b) Measure the resistance between the terminals of the purge VSV connector and ECM connector.
Standard resistance:
(c) Reconnect the purge VSV connector.
(d) Reconnect the ECM connector.
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE ECM
19. PERFORM ACTIVE TEST USING INTELLIGENT TESTER (FOR VENT VALVE)
(a) Turn the ignition switch to the ON position.
(b) Select the following menu items on the tester: DIAGNOSIS / ENHANCED OBD II / ACTIVE TEST / VENT VALVE.
(c) Measure the voltage between terminal VPMP of the ECM connector and body ground when the vent valve is turned ON (close) and OFF (vent) using the tester.
Result:
B -- REPLACE ECM
A -- INSPECT PUMP MODULE (VENT VALVE OPERATION)
20. PERFORM ACTIVE TEST USING INTELLIGENT TESTER (FOR VENT VALVE)
(a) Turn the ignition switch to the ON position.
(b) Select the following menu items on the tester: DIAGNOSIS / ENHANCED OBD II / ACTIVE TEST / VENT VALVE (ALONE).
(c) Measure the voltage between terminal VPMP of the ECM connector and body ground when the vent valve is turned ON (close) and OFF (vent) using the tester.
Result:
C -- REPLACE ECM
B -- INSPECT PUMP MODULE (VENT VALVE OPERATION)
A -- Continue to next step.
21. INSPECT PUMP MODULE (POWER SOURCE FOR VENT VALVE)
(a) Turn the ignition switch off.
(b) Disconnect the L5 canister connector.
(c) Turn the ignition switch to the ON position.
(d) Measure the voltage between terminal 9 of the canister connector and body ground.
Result:
(e) Reconnect the canister connector.
B -- REPAIR OR REPLACE HARNESS OR CONNECTOR
A -- Continue to next step.
22. INSPECT PUMP MODULE (VENT VALVE OPERATION)
(a) Turn the ignition switch off.
(b) Disconnect the L5 canister connector.
(c) Apply the battery voltage to terminals 9 and 8 of the pump module.
(d) Touch the pump module to confirm the vent valve operation.
Result:
(e) Reconnect the canister connector.
B -- REPLACE CHARCOAL CANISTER ASSEMBLY
A -- REPAIR OR REPLACE HARNESS OR CONNECTOR
23. PERFORM ACTIVE TEST USING INTELLIGENT TESTER (FOR PUMP MODULE (VACUUM PUMP))
(a) Select the following menu items on the tester: DIAGNOSIS / ENHANCED OBD II / ACTIVE TEST / VACUUM PUMP.
(b) Measure the voltage between terminal MPMP of the ECM connector and body ground when the vacuum pump is turned ON and OFF using the tester.
Result:
B -- REPLACE ECM
A -- Continue to next step.
24. CHECK HARNESS AND CONNECTOR (PUMP MODULE - ECM)
(a) Turn the ignition switch off.
(b) Disconnect the L5 canister connector.
(c) Turn the ignition switch to the ON position.
(d) Select the following menu items on the tester: DIAGNOSIS / ENHANCED OBD II / ACTIVE TEST / VACUUM PUMP.
(e) Turn the vacuum pump ON.
(f) Measure the voltage between terminal 1 of the canister connector and body ground.
Result:
(g) Reconnect the canister connector.
B -- REPAIR OR REPLACE HARNESS OR CONNECTOR
A -- Continue to next step.
25. CHECK HARNESS AND CONNECTOR (PUMP MODULE - GROUND)
(a) Disconnect the L5 canister connector.
(b) Turn the ignition switch off.
(c) Check the resistance between terminal 6 of the canister connector and body ground.
Result:
(d) Reconnect the canister connector.
B -- REPAIR OR REPLACE HARNESS OR CONNECTOR
A -- REPLACE CHARCOAL CANISTER ASSEMBLY
26. INSPECT THROTTLE WITH MOTOR BODY ASSEMBLY
(a) Stop the engine.
(b) Disconnect the EVAP hose from the throttle body.
(c) Start the engine.
(d) Confirm that the port of the throttle body has suction with your fingers.
Result:
(e) Reconnect the EVAP hose.
B -- INSPECT THROTTLE WITH MOTOR BODY ASSEMBLY
A -- REPLACE EVAP HOSE (THROTTLE BODY - PURGE VSV)
27. CORRECTLY REINSTALL OR REPLACE FUEL TANK CAP
HINT:
- When reinstalling the fuel tank cap, tighten it until a few click sounds are heard.
- When replacing the fuel tank cap, use a fuel tank cap that meets OEM specifications, and tighten it until a few click sounds are heard.
NEXT -- PERFORM EVAP SYSTEM CHECK (AUTO OPERATION)
28. REPLACE FUEL TANK CAP ASSEMBLY
HINT: When installing the fuel tank cap, tighten it until a few click sounds are heard.
NEXT -- PERFORM EVAP SYSTEM CHECK (AUTO OPERATION)
29. LOCATE EVAP LEAK
(a) Disconnect the vent hose.
(b) Connect the EVAP pressure tester tool to the canister with the adapter.
(c) Pressurize the EVAP system by 3.2 to 3.7 kPa (24 to 28 mmHg).
(d) Apply soapy water to the piping and the connecting parts of the EVAP system.
(e) Look for areas where bubbles appear. This indicates leak point.
(f) Repair or replace the leak point.
NEXT -- PERFORM EVAP SYSTEM CHECK (AUTO OPERATION)
30. REPLACE CHARCOAL CANISTER ASSEMBLY
(a) Replace the charcoal canister assembly Removal.
NEXT -- PERFORM EVAP SYSTEM CHECK (AUTO OPERATION)
31. REPLACE VACUUM SWITCHING VALVE NO. 1 (PURGE VSV)
(a) Disconnect the connector and 2 hoses from the purge VSV.
(b) Remove the purge VSV.
(c) Install a new purge VSV.
(d) Reconnect the connector and 2 hoses.
NEXT -- PERFORM EVAP SYSTEM CHECK (AUTO OPERATION)
32. REPAIR OR REPLACE HARNESS OR CONNECTOR
NEXT -- PERFORM EVAP SYSTEM CHECK (AUTO OPERATION)
33. REPLACE EVAP HOSE (THROTTLE BODY - PURGE VSV)
NEXT -- PERFORM EVAP SYSTEM CHECK (AUTO OPERATION)
34. INSPECT THROTTLE WITH MOTOR BODY ASSEMBLY
(a) Remove the throttle body Removal.
(b) Check that the EVAP purge port of the throttle body is not clogged. If necessary, replace the throttle body.
NEXT -- PERFORM EVAP SYSTEM CHECK (AUTO OPERATION)
35. REPLACE ECM
(a) Replace the ECM Removal.
NEXT -- PERFORM EVAP SYSTEM CHECK (AUTO OPERATION)
36. REPAIR OR REPLACE PARTS AND COMPONENTS INDICATED BY OUTPUT DTCS
(a) Repair the malfunctioning areas indicated by the DTCs that had been confirmed when the vehicle was brought in.
NEXT -- Continue to next step.
37. PERFORM EVAP SYSTEM CHECK (AUTO OPERATION)
NOTICE:
- In the EVAP SYSTEM CHECK (AUTO OPERATION), the series of 5 EVAP SYSTEM CHECK steps are performed automatically. It takes a maximum of approximately 18 minutes.
- Do not perform the EVAP 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 unavailable.
- 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 an EVAP SYSTEM CHECK, keep the temperature below 35°C (95°F).
(a) Clear the DTCs DTC Check / Clear.
(b) On the intelligent tester, select the following menu items: DIAGNOSIS / ENHANCED OBD II / SYSTEM CHECK / EVAP SYS CHECK / AUTO OPERATION.
(c) After the SYSTEM CHECK is completed, check for pending DTCs by selecting the following menu items: DIAGNOSIS / ENHANCED OBD II / DTC INFO / PENDING CODES.
HINT: If no pending DTC is found, the repair has been successfully completed.
NEXT -- COMPLETED