DTC Summary
WARNING: This page is about a different car, the 2025 Lexus NX 350, 2024 Lexus NX 350, 2023 Lexus NX 350, and 2022 Lexus NX 350. However, it is still accessible from the selected car via links, so may be relevant.
| DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
MIL |
Note |
| P0441-9C |
Evaporative Emission System Incorrect Purge Flow Low/Insufficient Flow |
While engine running, following conditions successively met:
- Negative pressure not created in EVAP system when purge VSV turned on (open)
- EVAP system pressure change less than 0.154 kPa (gauge) [0.022 psi (gauge)] when vent valve turned on (closed)
- Atmospheric pressure change before and after purge flow monitor less than 0.1 kPa (gauge) [0.015 psi (gauge)]
|
- Open or short in purge VSV circuit
- Purge VSV
- No. 1 check valve
- Canister pump module
- Purge line
- Canister (filter inside canister clogged)
- Semiconductor pwr integration ECU
- No. 2 charcoal canister filter (filter inside canister clogged)
- ECM
|
Comes on |
SAE Code: P0441 |
| DTC No. |
Monitoring Item |
Detection Timing |
Detection Logic |
SAE |
| P0441-9C |
- Purge VSV stuck closed
- No. 1 check valve stuck closed
- Purge flow
|
While engine running |
2 trip |
P0441 |