P017F code meaning
EVAP System Leak Detection Pump Module Air Filter Restricted
Powertrain system Generic code P01xx codes Check engine light
What P017F means
Leak detection pump modules in the evaporative emission system (for example Bosch's DM-TL, used by VW, BMW, Porsche, Volvo, Mini, Land Rover and Kia/Hyundai) draw fresh air through their own filter, often mounted separately via a hose; at rest the charcoal canister is also vented through it. P017F means this filter is restricted – by dust, mud or water when fitted near a wheel arch. The reference measurement of the pump and the venting are then distorted, and the tank can pull a vacuum. A GM patent describes detection via the pressure difference across the filter during purge (above about 8 inH2O for 10–20 s). No manufacturer document using exactly this code was found; the description rests on CARB's requirement to monitor evaporative system components and these component sources.
P017F at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modeNot expected
- Repair difficultyEasy, DIY possible
- Typical labor0.3 to 1.5 hours
- Clears after repairAfter a drive cycle
Symptoms of P017F
- Check engine light on
- EVAP readiness not set
- Possibly refuelling difficulties (venting)
- Usually no noticeable change in driving
Common causes of P017F
- Most likelyLeak detection pump filter dirty or blocked
- PossibleMoisture or ice in filter or hose
- PossibleHose between filter and pump kinked or blocked
- Less likelyPump module faulty (wrong reference)
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
EVAP leak detection pumpEVAP leak detection pump filterEVAP canister
What each part of P017F means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 1 | Area: fuel and air metering. |
| 7F | The exact fault in that area. |
What to do next
- Note P017F and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P017F
What does P017F mean?
P017F means "EVAP System Leak Detection Pump Module Air Filter Restricted". Leak detection pump modules in the evaporative emission system (for example Bosch's DM-TL, used by VW, BMW, Porsche, Volvo, Mini, Land Rover and Kia/Hyundai) draw fresh air through their own filter, often mounted separately via a hose; at rest the charcoal canister is also vented through it. It is a generic code, so it means the same on every make.
Is it safe to drive with P017F?
Usually yes, for a short time, if the check engine light is steady and the car drives normally. If the light flashes or the car runs badly, stop and have it checked.
Will P017F fail an emissions test?
Yes, it can. P017F is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P017F to fix?
Difficulty: easy. A typical repair takes 0.3 to 1.5 hours of work. A careful DIY repair is possible with basic tools and a scanner.
Will P017F clear itself after the repair?
After the repair the car has to complete a drive cycle (a mix of city and highway driving) before the test runs again. Until then the readiness monitor shows "not ready", which can fail an inspection.