Code result

P240F

EGR Slow Response

Moderate severity

What it means

The EGR system reacts to commanded changes more slowly than calibrated - typically a partly clogged EGR cooler, sticky valve, or worn actuator.

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

  • EGR valve or cooler sticky

    high

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

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