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Evap System: Component Locations Honda S2000 AP2 рестайлинг

Auxiliary Emission Control Systems 12 illustrations ~2391 words

Special Tools Required

  1. Vacuum/pressure gauge, 0-4 in.Hg, 07JAZ-001000B
  2. Vacuum pump/gauge, 0-30 in.Hg, Snap-on YA4000A or equivalent, commercially available

Note. Fresh fuel has a higher volatility that will create greater pressure/vacuum. The optimum condition for testing is less than a full tank of fresh fuel. If possible, to assist in leak detection, add 1 gallon of fresh fuel to the tank (as long as it will not fill the tank) just before starting these procedures. Before you troubleshoot, record all freeze data and any on-board snapshot, and review GENERAL TROUBLESHOOTING INFORMATION .

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  1. Check the fuel fill cap (the cap must say "Tighten to click"). It should turn 1/4 turn after it's tight, then it clicks. Is the correct fuel fill cap installed and properly tightened? YES - Go to step 2 . NO - Replace or tighten the cap, then go to step 30 .
  2. Check the fuel fill cap seal (A) and the fuel fill pipe mating surface (B). Verify that the fuel fill cap tether cord (C) is not caught under the cap. Is the fuel fill cap seal missing or damaged, is the fuel fill pipe damaged, or is the tether cord caught under the cap? YES - Replace the fuel fill cap or the fuel fill pipe, then go to step 30 . NO - Go to step 3 .
  3. Turn the ignition switch ON (II).
  4. Clear the DTC with the HDS.
  5. Do the EVAP FUNCTION TEST in the INSPECTION MENU with the HDS. Is the result OK? YES - Intermittent failure, system is OK at this time. Check for poor connections or loose terminals at the FTP sensor, the EVAP canister purge valve, or the EVAP canister vent shut valve and the ECM. NO - Go to step 6 .
  6. Turn the ignition switch to LOCK (0).
  7. Check for a poor connection or damage at the fuel tank vapor recirculation tube and fuel tank vapor control float (see «FUEL TANK VAPOR CONTROL FLOAT REPLACEMENT»(ref-221347-S03241066552006022400000) ).
  8. Disconnect the fuel tank vapor recirculation tube (A) from the EVAP canister (B), and the fresh air hose (C) from the EVAP canister vent shut valve (D), then plug the EVAP canister ports (E).
  9. Disconnect the vacuum hose (purge line) (A) from the EVAP canister purge valve (B) in the engine compartment, and the vacuum pump/gauge, 0-30 in.Hg, to the hose as shown below.
  10. Turn the ignition switch to ON (II).
  11. Select EVAP CVS ON in the INSPECTION MENU with the HDS.
  12. Apply vacuum to the hose until the FTP reads 1.90 V (-0.59 in.Hg, -15.1 mmHg). NOTE: Be careful not to exceed -10.0 kPa (-2.9 in.Hg, -75 mmHg) of vacuum. If you exceed this amount, the FTP sensor can be damaged.
  13. Select EVAP PCS OFF in the INSPECTION MENU with the HDS.
  14. Disconnect the vacuum pump/gauge from the EVAP canister purge valve.
  15. Monitor the FTP SENSOR in the DATA LIST for 1 minute with the HDS. Does the voltage increase more than 0.2 V (0.1 in.Hg, 2.5 mmHg)? YES - Go to step 16 . NO - Go to step 22 .
  16. Turn the ignition switch to LOCK (0)
  17. Disconnect the fresh air hoses (A) from the EVAP canister vent shut valve (B), and plug the EVAP canister vent shut valve ports (C).
  18. Turn the ignition switch to ON (II).
  19. Apply vacuum to the hose until the FTP reads 1.90 V (-0.59 in.Hg, -15.1 mmHg).
  20. Monitor the FTP Sensor in the DATA LIST for 1 minute with the HDS. Does the voltage increase more than 0.2 V (0.1 in.Hg, 2.5 mmHg)?
  21. Check for a loose or damaged EVAP canister purge line between the EVAP canister and the EVAP canister purge valve. Is the line OK? YES - Replace the following parts, then go to step 29 . FTP sensor O-ring (see «FTP SENSOR REPLACEMENT»(ref-221347-S35494191602006022400000) ) EVAP canister vent shut valve case and O-ring (see «EVAP CANISTER VENT SHUT VALVE REPLACEMENT»(ref-221347-S06725310352006022400000) ) EVAP canister (see «EVAP CANISTER REPLACEMENT»(ref-221347-S20623733852006022400000) ) NO - Reconnect or repair the EVAP canister purge hose, then go to step 29 .
  22. Remove the plug (A), and reconnect the fresh air hose (B) to the EVAP canister vent shut valve (C)
  23. Disconnect the purge hose (A) (EVAP canister side) from the EVAP canister purge valve (B), and connect a vacuum pump/gauge 0 - 30 in.Hg, to the purge hose (C) as shown below.
  24. Select EVAP CVS ON in the INSPECTION MENU with the HDS.
  25. Apply vacuum to the hose until the FTP reads 1.90 V (-0.59 in.Hg, -15.1 mmHg). NOTE: Be careful not to exceed -10.0 kPa (-2.9 in.Hg, -75 mmHg) of vacuum. If you exceed this amount, the FTP sensor can be damaged.
  26. Monitor the FTP SENSOR in the DATA LIST for 1 minute with the HDS. Does the voltage increase more than 0.2 V (0.1 in.Hg, 2.5 mmHg)? YES - Go to step 29 . NO - Replace the EVAP canister vent shut valve (see «EVAP CANISTER VENT SHUT VALVE REPLACEMENT»(ref-221347-S06725310352006022400000) ), then go to step 27 .
  27. Select EVAP CVS OFF in the INSPECTION MENU with the HDS.
  28. Check these parts for looseness or damage: Fuel fill pipe Fuel vapor return pipe Are the parts OK? YES - Check the fuel pump base gasket (see «FUEL TANK UNIT REMOVAL/INSTALLATION»(ref-221343-S14188270712006022400000) ), and check the fuel tank, then go to step 29 . NO - Repair or replace the damaged parts, then go to step 29 .
  29. Reconnect all hoses and connectors.
  30. Turn the ignition switch ON (II).
  31. Reset the ECM with the HDS.
  32. Do «ECM IDLE LEARN PROCEDURE»(ref-221342-S09897997502006022400000) .
  33. Do the EVAP FUNCTION TEST in the INSPECTION MENU with the HDS. Is the result OK? YES - Troubleshooting is complete. NO - Check for poor connections or loose terminals at the FTP sensor, the EVAP canister purge valve, or the EVAP canister vent shut valve and the ECM, then go to step 1 .

Note. Before you troubleshoot, record all freeze data and any on-board snapshot, and review GENERAL TROUBLESHOOTING INFORMATION .

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Scheme 25: DTC P0457: EVAP System Leak Detected/Fuel Fill Cap Loose or Missing
Scheme 25: DTC P0457: EVAP System Leak Detected/Fuel Fill Cap Loose or Missing

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  1. Check the fuel fill cap (the cap must say "Tighten to click"). It should turn 1/4 turn after it's tight, then it clicks. Is the correct fuel fill cap installed and properly tightened? YES - Go to step 2 . NO - Replace or tighten the cap, then go to step 19 .
  2. Check the fuel fill cap seal (A) and the fuel fill pipe mating surface (B). Verify that the fuel fill cap tether cord (C) is not caught under the cap. Is the fuel fill cap seal missing or damaged, is the fuel fill pipe damaged, or is the tether cord caught under the cap? YES - Replace the fuel fill cap or the fuel fill pipe, then go to step 19 . NO - Go to step 3 .
  3. Turn the ignition switch ON (II).
  4. Clear the DTC with the HDS.
  5. Do the EVAP FUNCTION TEST in the INSPECTION MENU with the HDS. Is the result OK? YES - Intermittent failure, system is OK at this time. Check for poor connections or loose terminals at the FTP sensor or the EVAP canister vent shut valve and the ECM. NO - Go to step 6 .
  6. Turn the ignition switch OFF.
  7. Remove the EVAP canister vent shut valve from the EVAP canister (see «EVAP CANISTER VENT SHUT VALVE REPLACEMENT»(ref-221347-S06725310352006022400000) ).
  8. Connect the 2P connector to the EVAP canister vent shut valve.
  9. Turn the ignition switch ON (II).
  10. Select EVAP CVS ON in the INSPECTION MENU with the HDS.
  11. Check the EVAP canister vent shut valve (A) operation. Does the valve operate? YES - Check the routing of the EVAP canister vent tube, then go to step 18 . NO - Go to step 12 .
  12. Turn the ignition switch OFF.
  13. Replace the EVAP canister vent shut valve (see «EVAP CANISTER VENT SHUT VALVE REPLACEMENT»(ref-221347-S06725310352006022400000) ).
  14. Turn the ignition switch ON (II).
  15. Reset the ECM with the HDS.
  16. Do «ECM IDLE LEARN PROCEDURE»(ref-221342-S09897997502006022400000) .
  17. Do the EVAP FUNCTION TEST in the INSPECTION MENU with the HDS. Is the result OK? YES - Troubleshooting is complete. NO - Check for poor connections or loose terminals at the FTP sensor or the EVAP canister vent shut valve and the ECM, then go to step 1 .
  18. Reinstall the EVAP canister vent shut valve (see «EVAP CANISTER VENT SHUT VALVE REPLACEMENT»(ref-221347-S06725310352006022400000) ).
  19. Turn the ignition switch ON (II).
  20. Reset the ECM with the HDS.
  21. Do «ECM IDLE LEARN PROCEDURE»(ref-221342-S09897997502006022400000) .
  22. Do the EVAP FUNCTION TEST in the INSPECTION MENU with the HDS. Is the result OK? YES - Troubleshooting is complete. NO - Check for poor connections or loose terminals at the FTP sensor or the EVAP canister vent shut valve and the ECM, then go to step 1 .

Note. Before you troubleshoot, record all freeze data and any on-board snapshot, and review GENERAL TROUBLESHOOTING INFORMATION ).

  1. Turn the ignition switch ON (II).
  2. Clear the DTC with the HDS.
  3. Do the EVAP FUNCTION TEST in the INSPECTION MENU with the HDS. Is the result OK? YES - Intermittent failure, system is OK at this time. Check for poor connections or loose terminals at the FTP sensor, the EVAP canister purge valve, or the EVAP canister vent shut valve and the ECM. NO - Go to step 4 .
  4. Turn the ignition switch OFF.
  5. Replace the EVAP canister purge valve (see «FTP SENSOR REPLACEMENT»(ref-221347-S35494191602006022400000) ).
  6. Turn the ignition switch ON (II).
  7. Reset the ECM with the HDS.
  8. Do «ECM IDLE LEARN PROCEDURE»(ref-221342-S09897997502006022400000) .
  9. Do the EVAP FUNCTION TEST in the INSPECTION MENU with the HDS. Is the result OK? YES - Troubleshooting is complete. NO - Check for poor connections or loose terminals at the FTP sensor, the EVAP canister purge valve, or the EVAP canister vent shut valve and the ECM, then go to step 1 .
  1. Vacuum/pressure gauge, 0-4 in.Hg, 07JAZ-001000B
  2. Vacuum pump/gauge, 0-30 in.Hg, Snap-on YA4000A or equivalent, commercially available
  3. Fuel pressure gauge attachment set 07AAJ-S6MA150

Note. Before you troubleshoot, record all freeze data and any on-board snapshot, and review GENERAL TROUBLESHOOTING INFORMATION .

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  1. Check the fuel fill cap installation. Is the fuel fill cap installed and properly tightened? YES - Go to step 2 . NO - Properly install the fuel fill cap (the cap must say "Tighten to click"). It should turn 1/4 turn after it's tight, then go to step 23 .
  2. Turn the ignition switch ON (II).
  3. Clear the DTC with the HDS.
  4. Do the EVAP FUNCTION TEST in the INSPECTION MENU with the HDS. Is the result OK? YES - Intermittent failure, system is OK at this time. Check for poor connections or loose terminals at the FTP sensor, the EVAP canister purge valve, or the EVAP canister vent shut valve and the ECM. NO - Go to step 5 .
  5. Check for a loose or damaged EVAP canister purge line between the intake manifold and the EVAP canister purge valve. Is the line OK? YES - Go to step 6 . NO - Reconnect or repair the EVAP canister purge line, then go to step 23 .
  6. Disconnect the vacuum hose (A) from the EVAP canister purge valve (B) in the engine compartment, and connect a T-fitting (C) from the vacuum gauge and the vacuum pump/gauge, 0-30 in.Hg, to the EVAP canister purge valve as shown below.
  7. Select EVAP PCS ON in the INSPECTION MENU with the HDS.
  8. Slowly apply about 2 kPa (0.6 in.Hg, 15 mmHg) of vacuum to the hose. Does it hold vacuum? YES - Check for blockage in the EVAP canister purge line between the intake manifold and the EVAP canister purge valve. If the vacuum hose is OK, replace the EVAP canister purge valve, then go to step 22 . NO - Go to step 9 .
  9. Reconnect the vacuum hose to the EVAP canister purge valve.
  10. Disconnect the vacuum hose from the EVAP canister purge line (EVAP canister side), and connect a T-fitting (A) from the vacuum gauge and the vacuum pump/gauge, 0-30 in.Hg, to the hose as shown below.
  11. Select EVAP PCS ON in the INSPECTION MENU with the HDS.
  12. Slowly apply about 2 kPa (0.6 in.Hg, 15 mmHg) of vacuum to the hose. Does it hold vacuum? YES - Check for a restricted in the PCS line between the EVAP canister purge valve and the EVAP canister, then go to step 22 . NO - Go to step 13 .
  13. Remove the FTP sensor with its connector connected (see «FTP SENSOR REPLACEMENT»(ref-221347-S35494191602006022400000) ).
  14. Connect a T-fitting (A) from the vacuum gauge and the commercially available vacuum pump/gauge, 0-30 in.Hg, to the FTP sensor (B) as shown below.
  15. Check and record the FTP SENSOR reading in the DATA LIST with the HDS.
  16. Slowly apply about 1.3 kPa (0.4 in.Hg, 10 mmHg) of vacuum to the hose.
  17. Check the FTP SENSOR in the DATA LIST with the HDS. Is the difference more than 1.1 kPa (0.31 in.Hg, 8 mmHg) before and after applying vacuum? YES - Go to step 18 . NO - Replace the FTP sensor (see «FTP SENSOR REPLACEMENT»(ref-221347-S35494191602006022400000) ), then go to step 22 .
  18. Reconnect the vacuum hose to the PCS line (EVAP canister side) and reinstall the FTP sensor.
  19. Disconnect the vacuum hose (A) from the EVAP canister purge valve (B), and connect a T-fitting (C) from the vacuum gauge and the vacuum pump/gauge, 0-30 in.Hg, to the hose as shown below.
  20. Select EVAP CVS ON in the INSPECTION MENU with the HDS.
  21. Slowly apply about 2 kPa (0.6 in.Hg, 15 mmHg) of vacuum to the hose. Does the hose hold vacuum? YES - Check for blockage at the EVAP canister port, then go to step 22 . NO - Replace the EVAP canister vent shut valve, then go to step 22 .
  22. Reconnect all hoses.
  23. Turn the ignition switch ON (II).
  24. Reset the ECM with the HDS.
  25. Do «ECM IDLE LEARN PROCEDURE»(ref-221342-S09897997502006022400000) .
  26. Do the EVAP FUNCTION TEST in the INSPECTION MENU with the HDS. Is the result OK? YES - Troubleshooting is complete. NO - Check for poor connections or loose terminals at the FTP sensor, the EVAP canister purge valve, or the EVAP canister vent shut valve and the ECM, then go to step 1 .

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