Code result

P2432

Secondary Air Injection System Air Flow/Pressure Sensor Circuit Range/Performance

Moderate severity

What it means

The signal of the SAI air flow or pressure sensor is implausible during operation. The reading does not change as expected when the air pump is commanded.

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

  • Clogged SAI passages

    high

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

  • SAI sensor drift

    medium

    A plausible cause — test and verify before replacing parts.

  • Sensor element aged beyond calibration window

    low

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

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