What this code means

The intake manifold runner position sensor is reporting values outside the expected range.

Symptoms

• Check engine light
• Runner control operates erratically

Common causes

• Worn sensor
• Runner linkage worn
• Intermittent connection
• Carbon binding flaps

Diagnostic steps

1. Monitor sensor values during operation
2. Check for mechanical binding
3. Inspect linkage

Repair notes

Replace sensor or repair linkage. Clean carbon from flaps.

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