OBD-II code · Powertrain (generic)

P017F EVAP System Leak Detection Pump Module Air Filter Restricted

Air filter on the EVAP leak detection pump module is restricted. Leak detection cannot establish reference pressure.

Is it safe to drive with P017F?

Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.

Common causes

  • Most likelyAir filter clogged with dirt

Symptoms

  • Check engine light on
  • Possible smell of fuel near tank or engine bay
  • Failed emissions inspection
  • Loose-cap warning may appear

Repair at a glance

Difficulty
Easy
DIY friendly
Often, with basic tools
Typical labour
0.3–1.5 h
Emissions test
Likely to fail
After the fix
A drive cycle is needed before the light stays off
Parts involved
Evap Pump Module, Pump Air Filter

Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.