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P1107

MAP Sensor Circuit Intermittent Low Voltage

2004-2007 Buick Rainier 4.2L I6

Moderate SeverityPowertrain

Description

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.

Related Codes

P0105Manifold Absolute Pressure/BARO CircuitP0106MAP/BARO Pressure Circuit Range/PerformanceP0107MAP/BARO Pressure Circuit Low InputP1106MAP Sensor Circuit Intermittent High VoltageP1106MAP Sensor Circuit Intermittent High VoltageP1106MAP Sensor Circuit Intermittent High VoltageP1106MAP Sensor Circuit Intermittent High VoltageP1106MAP Sensor Circuit Intermittent High VoltageP1106MAP Sensor Circuit Intermittent High VoltageP1106MAP Sensor Circuit Intermittent High VoltageP1106MAP Sensor Circuit Intermittent High VoltageP1106BARO Sensor Circuit Range/PerformanceP1106BARO Sensor Circuit Range/Performance

Other Powertrain Codes

P1107 on Other Vehicles

Common Questions

What does code P1107 mean on a 2004-2007 Buick Rainier?

P1107 stands for "MAP Sensor Circuit Intermittent Low Voltage". 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.

What are the symptoms of P1107 on a Buick Rainier?

Common symptoms of P1107 include: Check Engine Light (intermittent), Intermittent stalling, Surging at idle, Hesitation.

What causes P1107 on a 2004-2007 Buick Rainier?

Common causes of P1107 include: Loose MAP sensor connector, Intermittent open in wiring, Faulty MAP sensor, Corroded terminals.

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