Code result

P24C1

EVAP System Leak Detection Pump Switching Valve Performance Stuck Off

Moderate severity

What it means

Same as P24C0 with the valve stuck off. The evaporative system captures fuel vapor from the tank and purges it into intake; leaks or stuck purge valves leak hydrocarbons and cause emissions failures.

Is it safe to drive?

Use caution

The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.

Most likely causes

  • Valve stuck off

    high

    One of the most commonly reported causes for this code — check this first.

  • Carbon or debris buildup preventing free movement

    low

    Less common, but worth ruling out after the more likely causes.

  • Component wear with age - mechanical play

    low

    Less common, but worth ruling out after the more likely causes.

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