Code result

P2AB5

Cold Start Intake Manifold Runner Control Stuck Closed Bank 1

Moderate severity

What it means

During cold start, the intake manifold runner control on bank 1 cannot reach the open position. Air supply may be restricted as the engine warms up.

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

  • Actuator sluggish at cold temperatures

    high

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

  • Linkage iced or stiff

    medium

    A plausible cause — test and verify before replacing parts.

  • Carbon or debris buildup preventing free movement

    low

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

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