Code result

P02D4

Cylinder 5 Fuel Injector A Offset Learning At Min Limit

Moderate severity

What it means

The PCM applies a per-cylinder injector offset (Mengenausgleich) to compensate for production-tolerance differences in injector flow rate. On cylinder 5 the learned correction has reached its minimum value — the injector is delivering significantly more fuel than the calibrated reference and the controller cannot trim it any further.

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

  • Injector over-delivering

    high

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

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