Part 2

2GR-FE ENGINE CONTROL: SFI SYSTEM: P043E,P043F,P2401,P2402,P2419: Evaporative Emission System Reference Orifice Clog Up

DTC P043E - Evaporative Emission System Reference Orifice Clog Up

DTC P043F - Evaporative Emission System Reference Orifice High Flow

DTC P2401 - Evaporative Emission System Leak Detection Pump Control Circuit Low

DTC P2402 - Evaporative Emission System Leak Detection Pump Control Circuit High

DTC P2419 - Evaporative Emission System Switching Valve Control Circuit Low

(CONTINUED)

8. PERFORM EVAPORATIVE SYSTEM CHECK (STEP 3/5)

(a) Wait until the EVAP pressure change is less than 0.1 kPa (0.75 mmHg) for 30 seconds.
(b) Measure the EVAP pressure and record it.
HINT: A few minutes are required for the EVAP pressure to become saturated. When there is little fuel in the fuel tank, it takes up to 15 minutes.

NEXT -- Continue to next step.

9. PERFORM EVAPORATIVE SYSTEM CHECK (STEP 4/5)

(a) Check the EVAP pressure in step 4/5.
Result:

*: These DTCs are already present in the ECM when the vehicle arrives and are confirmed in the "Confirm DTC" procedures above.
C -- PERFORM ACTIVE TEST USING TECHSTREAM (PURGE VSV)
B -- CHECK EVAP HOSE (PURGE VSV - INTAKE AIR SURGE TANK ASSEMBLY)
A -- Continue to next step.

10. PERFORM EVAPORATIVE SYSTEM CHECK (STEP 5/5)

(a) Check the EVAP pressure in step 5/5.
(b) Compare the EVAP pressure in step 3/5 and the second reference pressure (step 5/5).
Result:

*: These DTCs are already present in the ECM when the vehicle arrives and are confirmed in the "CONFIRM DTC" procedures above.
B -- PERFORM ACTIVE TEST USING TECHSTREAM (PURGE VSV)
A -- REPAIR OR REPLACE PARTS AND COMPONENTS INDICATED BY OUTPUT DTCS
11. PERFORM EVAPORATIVE SYSTEM CHECK (STEP 3/5)

(a) Check the EVAP pressure in step 3/5.
Result:

*: These DTCs are already present in the ECM when the vehicle arrives and are confirmed in the "CONFIRM DTC" procedures above.
HINT: The first reference pressure is the value determined in step 2/5.

B -- PERFORM ACTIVE TEST USING TECHSTREAM (ACTIVE THE VACUUM PUMP)
A -- REPLACE CANISTER
12. PERFORM ACTIVE TEST USING TECHSTREAM (PURGE VSV)

(a) Enter the following menus: Powertrain / Engine / Active Test / Activate the VSV for EVAP Control.
(b) Disconnect the hose (connected to the canister) from the purge VSV.

Text in Illustration

(c) Start the engine.
(d) Using the Techstream, turn off the purge VSV (Activate the VSV for Evap Control: OFF).
(e) Use your finger to confirm that the purge VSV has no suction.
(f) Using the Techstream, turn on the purge VSV (Activate the VSV for Evap Control: ON).
(g) Use your finger to confirm that the purge VSV has suction.
Result:

(h) Reconnect the hose.
C -- CHECK EVAP HOSE (PURGE VSV - INTAKE AIR SURGE TANK ASSEMBLY)
B -- INSPECT PURGE VSV
A -- Continue to next step.

13. CHECK FUEL CAP
(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.

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

Result:

(c) Reinstall the fuel cap.
C -- REPLACE FUEL CAP
B -- CORRECTLY REINSTALL OR REPLACE FUEL CAP
A -- LOCATE EVAP LEAK PART

14. INSPECT PURGE VSV

(a) Turn the ignition switch off.
(b) Disconnect the purge VSV connector.

Text in Illustration

(c) Disconnect the hose (connected to the canister) from the purge VSV.
(d) Start the engine.
(e) Use your finger to confirm that the purge VSV has no suction.
Result:

(f) Reconnect the purge VSV connector.
(g) Reconnect the hose.
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 air surge tank assembly) from the purge VSV.

Text in Illustration

(b) Start the engine.
(c) Use your finger to confirm that the hose has suction.
Result:

(d) Reconnect the hose.
B -- INSPECT INTAKE AIR SURGE TANK ASSEMBLY (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

(d) Install the purge VSV.
B -- REPLACE PURGE VSV
A -- Continue to next step.

17. CHECK WIRE HARNESS (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.

Text in Illustration

Result:

(d) Reconnect the purge VSV connector.
B -- REPAIR OR REPLACE HARNESS OR CONNECTOR
A -- Continue to next step.

18. CHECK WIRE HARNESS (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 (Check for Open):

Standard Resistance (Check for Short):

Text in Illustration

(d) Reconnect the purge VSV connector.
(e) Reconnect the ECM connector.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE ECM
19. INSPECT CANISTER PUMP MODULE (POWER SOURCE FOR VENT VALVE)
(a) Disconnect the canister pump module 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

(d) Reconnect the canister pump module connector.
B -- REPAIR OR REPLACE HARNESS OR CONNECTOR
A -- Continue to next step.

20. INSPECT CANISTER PUMP MODULE (VENT VALVE OPERATION)

(a) Disconnect the canister pump module connector.
(b) Apply battery voltage to VLVB and VGND terminals of the canister pump module.
(c) Touch the canister pump module to confirm the vent valve operation.

Text in Illustration

Result:

(d) Reconnect the canister pump module connector.
B -- REPLACE CANISTER
A -- Continue to next step.

21. CHECK WIRE HARNESS (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:

Text in Illustration

(d) Reconnect the ECM connector.
(e) Reconnect the canister pump module connector.
B -- REPAIR OR REPLACE HARNESS OR CONNECTOR
A -- REPLACE ECM
22. PERFORM ACTIVE TEST USING TECHSTREAM (ACTIVE THE VACUUM PUMP)
(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

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

23. CHECK WIRE HARNESS (CANISTER PUMP MODULE - BODY GROUND)
(a) Disconnect the canister pump module connector.

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

Text in Illustration

(c) Reconnect the canister pump module connector.
B -- REPAIR OR REPLACE HARNESS OR CONNECTOR
A -- REPLACE CANISTER
24. CHECK WIRE HARNESS (ECM - CANISTER PUMP MODULE)
(a) Disconnect the canister pump module connector.

(b) Disconnect the ECM connector.
(c) Measure the resistance according to the value(s) in the table below.
Result:

Text in Illustration

(d) Reconnect the canister pump module connector.
(e) Reconnect the ECM connector.
B -- REPAIR OR REPLACE HARNESS OR CONNECTOR
A -- REPLACE ECM
25. INSPECT INTAKE AIR SURGE TANK ASSEMBLY (EVAP PURGE PORT)
(a) Disconnect the EVAP hose from the intake air surge tank assembly.
(b) Start the engine.
(c) Use your finger to confirm that the port of the intake air surge tank assembly has suction.
Result:

(d) Reconnect the EVAP hose.
B -- INSPECT INTAKE AIR SURGE TANK ASSEMBLY (EVAP PURGE PORT)
A -- REPLACE EVAP HOSE (INTAKE AIR SURGE TANK ASSEMBLY - PURGE VSV)