Can drive — fix at your convenience.
This code means the purge flow sensor is sending a signal that's higher than the expected range during EVAP operation. It's commonly caused by a faulty purge flow sensor, an open or shorted-to-power wire, a connector problem, or a purge valve stuck open. The usual repair is replacing the sensor or purge valve and fixing any wiring or connector faults.
$120 – $400
Varies by vehicle and root cause.
Yes, in most cases it's safe. This EVAP code usually doesn't affect drivability or safety. Still, have it diagnosed within a week or two, particularly before any emissions inspection.
Repairs generally cost between $120 and $400. Replacing the purge valve or flow sensor is the most common fix; wiring or connector repairs can add to the cost.
No, it's low severity. The EVAP system controls fuel vapors and rarely affects how the car drives. The main issues are the check engine light and failing emissions testing.
Both involve the purge flow sensor circuit. P0467 means the signal is too low, while P0468 means it's too high. They usually share the same root causes, such as a faulty sensor, wiring fault, or stuck purge valve.