Can you keep driving?
Can you keep driving?
Stop driving if any of these apply
- !There is a strong fuel smell or an obvious fuel leak.
- !The vehicle develops drivability symptoms that suggest more than a simple EVAP monitor fault.
What to check first
Step-by-step checks
- 1
Safety first
Work away from sparks and hot surfaces because the EVAP system handles fuel vapors
- 2
Free - no tools
Check whether the code appears with fuel smell, rough idle, or hard start after refueling
- 3
Basic tool needed
Inspect the purge sensor connector and harness for damage or corrosion
- 4
Basic tool needed
Look for vacuum hose routing problems or blocked purge passages
- 5
Basic tool needed
If scan data is available, compare commanded purge with the sensor response
- 6
Basic tool needed
Confirm whether the vehicle has a dedicated purge flow sensor before buying parts
If the code returns
- -If the circuit is shorted, fix wiring before replacing the sensor.
- -If the purge path is blocked or leaking, repair that first.
- -If the valve is behaving normally but the signal stays low, the sensor moves higher on the list.
Background
What this code means
P0467 is a generic OBD-II code for a low-input purge flow sensor signal.
That usually means the ECU is seeing less purge flow than expected, or the circuit is being pulled low by a fault. A wiring issue, blocked purge path, or weak valve can all create the problem.
Diagnosis
Common causes
Shorted purge flow sensor circuit
A damaged wire or sensor can pull the signal lower than expected.
Blocked purge passage
A restricted hose or passage can keep purge flow low.
Weak purge valve
The valve may not open enough to let vapor flow.
Connector contamination
Corrosion or moisture can distort the sensor signal.
Avoid these mistakes
What not to do
- xDo not replace the charcoal canister first if the purge flow circuit is the obvious issue.
- xDo not ignore a blocked hose or routing problem around the purge system.
Parts
Parts that may need replacing
See also
Related OBD codes
Source notes
Generic OBD-II (SAE J1979 / ISO 15031-5). P0467 was seeded from dtcdb and then expanded around low-input purge flow sensor faults, including shorted circuits, blocked purge paths, and weak valves.
This guide is written as a generic multi-make reference, so bulletin history, sensor locations, and repair order can still change by manufacturer and engine family.
This is generic OBD-II guidance and should not override vehicle-specific service information. Exact diagnosis and repair steps vary by make, engine family, and model year.
Last reviewed: 2026-04-10
Reference: Open reference