DTC P2422

DTC P2422  : EVAP Canister Vent Shut Valve Stuck Closed Malfunction

DTC (PGM-FI)

1. EVAP system check

   -1. Turn the vehicle to the ON mode.

   -2. Clear the DTC with the HDS.

   -3. Turn the vehicle to the OFF (LOCK) mode.

   -4. Insert the emergency fuel funnel into the fuel filler neck , and wait 1 minute.

   NOTE: The emergency fuel funnel is stored in the trunk tools box.

   -5. Turn the vehicle to the ON mode.

   -6. Check the parameter(s) below with the HDS.

   Signal	Threshold		Current conditions
   	Values	Unit	Values	Unit
   FTP SENSOR	-0.67-0.67	kPa

   Do the current condition(s) match the threshold?

   YES 

   Go to step 2.

   NO 

   Go to step 5.

2. Problem verification

   -1. Remove the emergency fuel funnel from the fuel filler neck.

   -2. Clear the DTC with the HDS .

   -3. Start the engine, and let it idle without load (in P or N) until the radiator fan comes on.

   -4. Monitor the EVAP PC DUTY (purge control duty) in the DATA LIST with the HDS, while holding the engine speed at 3000 RPM with the EVAP PC DUTY at 20 % or more for at least 4 minutes, then let the engine idle.

   Signal	Current conditions
   	Values	Unit
   EVAP PC DUTY

   -5. Monitor the OBD STATUS for DTC P2422 in the DTCs MENU with the HDS.

   DTC Description	OBD STATUS
   P2422 EVAP Canister Vent Shut Valve Stuck Closed Malfunction

   Does the HDS indicate FAILED?

   YES 

   The failure is duplicated. Go to step 3.

   NO 

   If the HDS indicates PASSED, there might be an intermittent failure, and the system is OK at this time. Check the on-board snapshot, and repeat the driving conditions when the DTC set (fuel level, engine speed, vehicle speed, and outside temperature). If no problem is found, check for poor connections or loose terminals between the FTP sensor and the PCM. Also check for a blockage in the FTP sensor vent port and vent hose, and the EVAP canister vent hose and drain joint. If the HDS indicates NOT COMPLETED, let the engine idle until a result comes on.

3. EVAP canister vent line check

   -1. Clear the DTC with the HDS.

   -2. Turn the vehicle to the OFF (LOCK) mode.

   -3. Disconnect the EVAP canister vent hose (A) from the EVAP canister (B).

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

   -4. Turn the vehicle to the ON mode.

   -5. Check the parameter(s) below with the HDS.

   Signal	Threshold		Current conditions
   	Values	Unit	Values	Unit
   FTP SENSOR	-0.67-0.67	kPa

   Do the current condition(s) match the threshold?

   YES 

   Check for a blockage in the EVAP canister vent hose or drain tube joint, then do the repair verification.

   NO 

   Go to step 4.

4. EVAP canister vent shut valve operation check

   -1. Turn the vehicle to the OFF (LOCK) mode.

   -2. Remove the EVAP canister vent shut valve from the EVAP canister .

   -3. Connect the 2P connector to the EVAP canister vent shut valve.

   -4. Turn the vehicle to the ON mode.

   -5. Select EVAP TEST in the INSPECTION MENU, then select the EVAP CVS ON in the SINGLE SOLENOID with the HDS.

   SINGLE SOLENOID

   Check the EVAP canister vent shut valve (A) operation.

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

   Is the valve free of corrosion, and does it operate properly?

   YES 

   The EVAP canister vent shut valve is OK. Go to step 5.

   NO 

   Replace the EVAP canister vent shut valve , then do the repair verification.

5. FTP sensor vent hose restriction check

   -1. Disconnect the vent hose (A) from the FTP sensor (B).

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

   -2. Check the parameter(s) below with the HDS.

   Signal	Threshold		Current conditions
   	Values	Unit	Values	Unit
   FTP SENSOR	-0.67-0.67	kPa

   Do the current condition(s) match the threshold?

   YES 

   Check for a blockage in the FTP sensor vent hose, then do the repair verification.

   NO 

   Go to step 6.

6. FTP sensor port restriction check

   -1. Turn the vehicle to the OFF (LOCK) mode.

   -2. Remove the FTP sensor (A) from the EVAP canister with its connector connected.

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

   -3. Check the parameter(s) below with the HDS.

   Signal	Threshold		Current conditions
   	Values	Unit	Values	Unit
   FTP SENSOR	-0.67-0.67	kPa

   Do the current condition(s) match the threshold?

   YES 

   The FTP sensor port is OK. The EVAP canister has an internal blockage; replace the EVAP canister , then do the repair verification.

   NO 

   Replace the FTP sensor , then do the repair verification.

7. Repair verification (OBD STATUS check)

   -1. Turn the vehicle to the OFF (LOCK) mode.

   -2. Install the parts in the reverse order of removal.

   -3. Turn the vehicle to the ON mode.

   -4. Reset the PCM with the HDS .

   Reset PCM

   -5. Do the PCM idle learn procedure .

   -6. Monitor the OBD STATUS for DTC P2422 in the DTCs MENU with the HDS.

   DTC Description	OBD STATUS
   P2422 EVAP Canister Vent Shut Valve Stuck Closed Malfunction

   DTC (PGM-FI)

   Does the HDS indicate PASSED, FAILED, or NOT COMPLETED?

   PASSED

   Troubleshooting is complete. If any other Pending or Confirmed DTCs were indicated, go to the indicated DTC's troubleshooting.

   FAILED

   Go to step 1 and recheck.

   NOT COMPLETED

   Hold the engine speed at 3000 RPM with the EVAP PC DUTY at 20% or more until a result comes on.