DTC P0496
DTC P0496 : EVAP System High Purge Flow Detected
Special Tools Required
Vacuum Pump/Gauge, 0-30 inHg Snap-on YA4000A or equivalent, commercially available
Vacuum/Pressure Gauge, 0-4 inHg 07JAZ-001000B
| DTC Description | Confirmed DTC | Pending DTC | Freeze Frame |
|---|---|---|---|
| P0496 EVAP System High Purge Flow Detected |
DTC (PGM-FI)
- Problem verification
-1. Turn the vehicle to the ON mode.
-2. Clear the DTC with the HDS.
-3. Select the EVAP TEST in the INSPECTION MENU, then select the FUNCTION TEST with the HDS.
NOTE: If the test could not be completed because of another DTC, do the troubleshooting for that DTC.FUNCTION TEST
Is the result OK?
YES
Intermittent failure, the system is OK at this time. Check the EVAP canister purge valve for debris that may cause it to stick open intermittently.
NO
The failure is duplicated. Go to step 2.
- EVAP canister purge valve open stuck check
-1. Disconnect the vacuum hose (purge line) (A) from the EVAP canister purge valve (B) in the engine compartment, then connect a T-fitting (C), a vacuum gauge, and a vacuum pump/gauge, 0-30 inHg, to the vacuum hose as shown.
-2. Apply about 2 kPa (0.6 inHg, 15 mmHg) of vacuum to the EVAP canister purge valve.
Does it hold vacuum?
YES
Replace the EVAP canister vent shut valve , then do the repair verification.
NO
Replace the EVAP canister purge valve , then do the repair verification.
- Repair verification
-1. Turn the vehicle to the ON mode.
-2. Reset the PCM with the HDS .
Reset PCM
-3. Do the PCM idle learn procedure .
-4. Select the EVAP TEST in the INSPECTION MENU, then select the FUNCTION TEST with the HDS.
FUNCTION TEST
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, the EVAP canister vent shut valve, and the PCM, then go to step 1.