MAP Sensor Circuit Intermittent High Voltage
2004-2007 Buick Rainier 4.2L I6 🇬🇧
Description
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.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P1106 on Other Vehicles
Common Questions
What does code P1106 mean on a 2004-2007 Buick Rainier?
P1106 stands for "MAP Sensor Circuit Intermittent High Voltage". 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.
What are the symptoms of P1106 on a Buick Rainier?
Common symptoms of P1106 include: Check Engine Light (intermittent), Intermittent rough running, Hesitation during acceleration, Poor fuel economy.
What causes P1106 on a 2004-2007 Buick Rainier?
Common causes of P1106 include: Loose or corroded MAP sensor connector, Intermittent wiring fault, Faulty MAP sensor, Damaged sensor ground circuit.