Evaporative Emissions System Ford Transit Connect I рестайлинг

Torque Specifications

TORQUE SPECIFICATIONS

The Evaporative Emission (EVAP) system consists of the

1. EVAP canister purge valve.
2. EVAP canister.
3. EVAP canister vent solenoid.
4. Fuel Tank Pressure (FTP) sensor (part of 9002).
5. fuel tank filler cap.

The EVAP system

1. utilizes an On-Board Refueling Vapor Recovery (ORVR) system that captures the fuel vapors from the vehicle's fuel tank during refueling.
2. prevents hydrocarbon emissions from reaching the atmosphere.
3. stores fuel vapors in the EVAP canister, that are generated during vehicle operation or hot soak, until they can be consumed by the engine during normal engine operation.
4. routes the stored fuel vapors to the engine during engine operation.
5. is controlled by the PCM which, using various sensor inputs, calculates the desired amount of purge flow. The PCM regulates the purge flow, induced by the application of intake manifold vacuum, by varying the duty cycle applied to the EVAP canister purge valve.

The fuel vapors are routed

1. from the fuel tank through the fill limit valve and fuel vapor vent valve.
2. to the EVAP canister through the fuel vapor tube assembly.
3. to the engine when the EVAP canister purge valve is opened by the PCM.

The EVAP canister

1. is mounted on the top of the fuel tank.
2. contains activated carbon.
3. stores fuel vapors.

The fuel tank filler cap

1. relieves system vacuum below 5.4 kPa (22.642 in H 2 O) and system pressure above 23.3 kPa (93.54 H 2 O).

The EVAP canister vent solenoid

1. is normally open.
2. seals the EVAP system for the inspection and maintenance (I/M 240) test and OBD II leak and pressure tests.
3. is mounted to the EVAP canister.
4. is serviced as a separate item.

The EVAP canister purge valve

1. is normally closed.
2. regulates the purging of the EVAP canister.
3. is controlled by the PCM.
4. is repaired as a separate item.

The FTP sensor

1. monitors the pressure levels in the fuel tank.
2. communicates the pressure reading to the PCM during the OBD II leak test.
3. is located in the fuel vapor tube assembly and is serviced as part of the fuel tank.

The EVAP system monitor

1. is a self-test strategy within the PCM which tests the integrity of the EVAP system.
2. monitors the EVAP system for leaks.
3. monitors electronic EVAP components for irrationally high or low voltages.
4. monitors for correct EVAP system operation.
5. uses negative and positive leak test methods to test and activate the EVAP system.

The engine ON EVAP leak-check monitor

1. is executed by the individual components of the enhanced EVAP system. Intake manifold vacuum is utilized to reach a target vacuum on the EVAP system. The FTP sensor is used by the engine ON EVAP leak-check monitor to determine if the target vacuum necessary to carry out the leak-check on the FTP system has been reached. Once target vacuum on the EVAP system is achieved, the change in EVAP system vacuum over a calibrated period of time determines if a leak exists.

The Engine Off Natural Vacuum (EONV) EVAP leak-check monitor is executed

1. once the engine ON EVAP leak-check monitor is completed and the key is turned OFF. The EONV EVAP leak-check monitor determines if a leak is present when the naturally occurring change in the fuel tank pressure or vacuum does not exceed a calibrated limit during a calibrated amount of time. A separate, low-power consuming microprocessor in the PCM manages the EONV leak-check. The engine OFF EVAP leak-check monitor is executed by the individual components of the enhanced EVAP system.

Scheme 112

ITEM DESCRIPTION

Refer to the INTRODUCTION article.

Special Tool(s)

SPECIAL TOOLS VACUTEC Smoke Machine Fuel EVAP Emissions System Tester 218-0002 or equivalent Vehicle Communication Module (VCM) and Integrated Diagnostic System (IDS) software with appropriate hardware, or equivalent scan tool

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Phase 1 - Leak Verification

1. Run the EVAP Test with the scan tool.
2. If the Evaporative Emission (EVAP) system failed the EVAP Test, then proceed to Phase 2.

Phase 2 - System Leak Check

1. Disconnect the upper vapor tube-to- EVAP canister purge valve quick connect coupling. For additional information, refer to «FUEL SYSTEM - GENERAL INFORMATION»(/ford/transit-connect/i-2009-2013/remont/fuel-system/#fuel-system-general-information) article.
2. Connect the VACUTEC Smoke Machine Fuel EVAP Emissions System Tester to the upper EVAP canister purge valve fitting. For additional information, refer to the manufacturer's instructions.
3. With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to «JACKING & LIFTING»(/ford/transit-connect/i-2009-2013/remont/hoistjack/#jacking-lifting) article.
4. Connect the battery ground cable. For additional information, refer to «BATTERY, BATTERY MOUNTING SYSTEM & BATTERY CABLES»(/ford/transit-connect/i-2009-2013/remont/charging-system/#battery-battery-mounting-system-battery-cables) article.
5. Open the EVAP canister purge valve with the scan tool.
6. Close the canister vent solenoid with the scan tool.
7. Carefully turn the fuel tank filler cap counterclockwise until the thread disengages and position aside.
8. Introduce smoke from the VACUTEC Smoke Machine Fuel EVAP Emissions System Tester into the EVAP system and verify that smoke is exiting the fuel tank filler pipe neck area. For additional information, refer to the manufacturer's instructions.
9. Install the fuel tank filler cap once smoke is observed exiting the fuel tank filler pipe neck area.
10. Continue to enter smoke into the system for 60 seconds to obtain pressure.
11. Press and release the remote start button in intervals of 15 seconds ON and 15 seconds OFF while checking for exiting smoke.
12. Use the halogen light provided with the VACUTEC Smoke Machine Fuel EVAP Emissions System Tester to follow the EVAP system path and look for smoke exiting at the source of the leak(s).
13. Repair any leaks as necessary.
14. Repeat the leak test until the system passes.

Scheme 115

ITEM DESCRIPTION

Removal and Installation

Scheme 116

1. Disconnect the battery ground cable. For additional information, refer to «BATTERY, BATTERY MOUNTING SYSTEM & BATTERY CABLES»(/ford/transit-connect/i-2009-2013/remont/charging-system/#battery-battery-mounting-system-battery-cables) article.
2. Remove the 2 retainers, release the clip and remove the heat shield.
3. Disconnect the Evaporative Emission (EVAP) canister purge valve electrical connector.
4. Disconnect the 2 fuel vapor jumper tube-to- EVAP canister purge valve quick connect couplings. For additional information, refer to «FUEL SYSTEM - GENERAL INFORMATION»(/ford/transit-connect/i-2009-2013/remont/fuel-system/#fuel-system-general-information) article.
5. Press the locking tab and remove the EVAP canister purge valve from the bracket.
6. To install, reverse the removal procedure. Carry out the Evaporative Emission System Leak Test. For additional information, refer to «EVAPORATIVE EMISSION SYSTEM LEAK TEST»(/ford/transit-connect/i-2009-2013/remont/testing-diagnostics/#evaporative-emissions-system) in this service information.

Scheme 117

ITEM DESCRIPTION

1. Remove the fuel tank. For additional information, refer to «FUEL TANK & FUEL LINES»(/ford/transit-connect/i-2009-2013/remont/fuel-system/#fuel-tank-fuel-lines) article.
2. Disconnect the fuel vapor tube assembly-to-Evaporative Emission (EVAP) canister quick connect coupling. For additional information, refer to «FUEL SYSTEM - GENERAL INFORMATION»(/ford/transit-connect/i-2009-2013/remont/fuel-system/#fuel-system-general-information) article.
3. Disconnect the fuel vapor jumper tube-to- EVAP canister quick connect coupling. For additional information, refer to «FUEL SYSTEM - GENERAL INFORMATION»(/ford/transit-connect/i-2009-2013/remont/fuel-system/#fuel-system-general-information) article.
4. Remove the 3 nuts and the EVAP canister. To install, tighten to 2 Nm (18 lb-in).
5. To install, reverse the removal procedure. Carry out the Evaporative Emission System Leak Test. For additional information, refer to «EVAPORATIVE EMISSION SYSTEM LEAK TEST»(/ford/transit-connect/i-2009-2013/remont/testing-diagnostics/#evaporative-emissions-system) in this service information.

SPECIAL TOOLS Powertrain Lift 300-OTC1585AE or equivalent

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ITEM DESCRIPTION

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1. With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to «JACKING & LIFTING»(/ford/transit-connect/i-2009-2013/remont/hoistjack/#jacking-lifting) article.
2. Disconnect the battery ground cable. For additional information, refer to «BATTERY, BATTERY MOUNTING SYSTEM & BATTERY CABLES»(/ford/transit-connect/i-2009-2013/remont/charging-system/#battery-battery-mounting-system-battery-cables) article.
3. Position the Powertrain Lift under the fuel tank.
4. Remove the bolt and position the fuel tank straps aside. To install, tighten to 25 Nm (18 lb-ft).
5. Disconnect the EVAP canister vent solenoid electrical connector.
6. Depress the locking tab outward, rotate the EVAP canister vent solenoid clockwise and remove it from the EVAP canister.
7. To install, reverse the removal procedure. Carry out the Evaporative Emission System Leak Test. For additional information, refer to «EVAPORATIVE EMISSION SYSTEM LEAK TEST»(/ford/transit-connect/i-2009-2013/remont/testing-diagnostics/#evaporative-emissions-system) in this service information.

See also:
• INTRODUCTION
• FUEL SYSTEM - GENERAL INFORMATION
• JACKING & LIFTING
• BATTERY, BATTERY MOUNTING SYSTEM & BATTERY CABLES
• FUEL TANK & FUEL LINES
• EVAPORATIVE EMISSION SYSTEM LEAK TEST