Code result

P2B10

Cylinder 1 Injection Pulse Offset Not Learned

Moderate severity

What it means

The ECM has not yet learned the per-cylinder injection pulse offset for cylinder 1. Combustion equalisation between cylinders cannot be applied until adaptation completes.

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

  • Adaptation lost after battery disconnect or ECM reset

    high

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

  • Injector replaced without learn procedure

    medium

    A plausible cause — test and verify before replacing parts.

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