Code result

P02A4

Cylinder 3 - Injector Restricted

Moderate severity

What it means

Cylinder 3 injector flow restricted — partial blockage detected. A flow-deviating injector throws off cylinder balance — adjacent cylinders run leaner/richer to compensate, often masking the root cause until the trim limit is hit.

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 clogged

    high

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

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