Free API
P1107moderate severityPowertrain

MAP Sensor Circuit Intermittent Low Voltage

on 2008 Buick Enclave 3.6L V6 · AWD

What this code means

The PCM detected intermittent low voltage drops from the MAP sensor circuit. This indicates a sporadic loss of signal, often caused by a loose connection.

Symptoms

  • Check Engine Light (intermittent)
  • Intermittent stalling
  • Surging at idle
  • Hesitation

Common causes

  • Loose MAP sensor connector
  • Intermittent open in wiring
  • Faulty MAP sensor
  • Corroded terminals

Diagnostic steps

  1. Wiggle test MAP sensor connector while monitoring voltage
  2. Inspect wiring for breaks
  3. Test MAP sensor
  4. Check 5-volt reference supply

Repair notes

Clean connectors and repair any damaged wiring. Replace MAP sensor if faulty.

Other Powertrain codes on this vehicle

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