P1106moderate severityPowertrain
MAP Sensor Circuit Intermittent High Voltage
on 2010 Buick Enclave 3.6L V6 · AWD
What this code means
The PCM detected intermittent high voltage spikes from the Manifold Absolute Pressure sensor circuit. Unlike a steady high voltage (P0108), this code indicates a sporadic connection issue.
Symptoms
- Check Engine Light (intermittent)
- Intermittent rough running
- Hesitation during acceleration
- Poor fuel economy
Common causes
- Loose or corroded MAP sensor connector
- Intermittent wiring fault
- Faulty MAP sensor
- Damaged sensor ground circuit
Diagnostic steps
- Wiggle test MAP sensor connector while monitoring voltage
- Inspect wiring for chafing or damage
- Test MAP sensor output across range
- Check sensor ground circuit
Repair notes
Clean and reseat MAP sensor connector. Repair any damaged wiring. Replace MAP sensor if faulty.
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