DTC P04F0-9C: Evaporative Emission System High Load Purge Line "A" Performance Low/Insufficient Flow [12/2021 - ]: Description
A high load purge line is installed upstream from the turbo to process evaporated fuel vapor during boost operation.
The pressure on the high load purge line is monitored to detect that a hose is detached or clogged.
| *1 | Purge VSV (with Check Valve) | *2 | No. 2 Compressor Inlet Elbow (Ejector) |
| *3 | Purge Pressure Sensor (No. 1 Turbo Pressure Sensor) |
*4 | Air Cleaner |
| *5 | No. 2 Compressor Outlet Elbow | *6 | Intake Manifold |
| *7 | No. 3 Turbo Pressure Sensor | *8 | ECM (Atmospheric Pressure Sensor) |
| *9 | from Canister | *10 | to Engine |
| *a | EVAP Purge Flow | *b | During Boost Flow |
| *c | No Boost Flow | - | - |
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | DTC Output from | Priority | Note |
|---|---|---|---|---|---|---|---|
| P04F0-9C | Evaporative Emission System High Load Purge Line "A" Performance Low/Insufficient Flow | Pressure pulsation during purge VSV operation in the boost range is less than the threshold value (2 trip detection logic). |
|
Comes on | Engine | B | SAE: P04F0 |