EVAP System Troubleshooting (Mexico models): Inspection

EVAP Canister Purge Valve, Purge Line Inspection (Valve Open Stuck) 

Test Procedure 

• Preparation
  1. -

     Engine: allowed to cool to which the HDS [ECT Sensor 1] value is less than 131°F (55°C)

• Procedure
  • Disconnect the vacuum hose (A) from the EVAP canister (B).
  • Connect the vacuum pump/gauge, 0-30 inHg (C) to the vacuum hose as shown.
  • Start the engine.
  • Check the vacuum pump/gauge, 0-30 inHg with idling.

Courtesy of HONDA, U.S.A., INC.

• Normal Conditions
  1. -

     There is no vacuum while the HDS [ECT Sensor 1] is less than 131°F (55°C).

Results 

• If it is abnormal, inspect the vacuum hose. If it is OK, there is a problem with the EVAP canister purge valve.

EVAP Canister Purge Valve, Purge Line Inspection (Valve Closed Stuck) 

Test Procedure 

• Procedure
  • Disconnect the vacuum hose (A) from the EVAP canister (B).
  • Connect the vacuum pump/gauge, 0-30 inHg (C) to the vacuum hose as shown.
  • Start the engine.
  • Hold the engine speed at 3,000 rpm without load (in P or N) until the radiator fan comes on, then let it idle.
  • Check the vacuum pump/gauge, 0-30 inHg with idling.

Courtesy of HONDA, U.S.A., INC.

• Normal Conditions
  1. -

     There is vacuum.

Results 

• If it is abnormal, inspect the vacuum hose routing. If it is OK, there is a problem with the EVAP canister purge valve.

EVAP Canister Inspection 

Preconditions 

• EVAP canister purge valve and purge line: normal
• EVAP two way valve: normal

Test Procedure 

• Procedure
  • Insert the emergency fuel funnel to the fuel filler neck.
    NOTE:

    The emergency fuel funnel is stored in the trunk tool box.

  • Disconnect the EVAP canister vent hose (A) from the EVAP canister (B).
  • Connect a T-fitting (C) and the vacuum/pressure gauge, 0-4 inHg (D) to the EVAP canister as shown.
  • Start the engine.
  • Hold the engine speed at 3,000 rpm.
  • Check the vacuum/pressure gauge, 0-4 inHg for 1 minute.

Courtesy of HONDA, U.S.A., INC.

• Normal Conditions
  1. -

     Vacuum appears on gauge within 1 minute.

Results 

• If it is abnormal, there is a problem with the EVAP canister.