Engine-CodesChevrolet – P1106 Chevrolet

P1106 Chevrolet Code - Manifold Absolute Pressure Sensor Circuit Intermittent High Voltage

Quick Answer

The P1106 code for Chevrolet vehicles indicates an issue with the Manifold Absolute Pressure (MAP) sensor circuit experiencing intermittent high voltage. Common causes include Faulty MAP sensor, Damaged or corroded wiring in the sensor circuit, Issues with the ECU or related control modules. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P1106 Chevrolet indicates Manifold Absolute Pressure Sensor Circuit Intermittent High Voltage.
Common causes
Common causes include Faulty MAP sensor, Damaged or corroded wiring in the sensor circuit, Issues with the ECU or related control modules.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Table of contents Created and updated by William Orellana on Sep 07, 2024
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Code P1106 Chevrolet Description

The P1106 code for Chevrolet vehicles indicates an issue with the Manifold Absolute Pressure (MAP) sensor circuit experiencing intermittent high voltage. The MAP sensor is a crucial component of the engine management system, as it measures the pressure within the intake manifold and helps the engine control unit (ECU) determine the correct air-fuel mixture for optimal performance. When the sensor circuit detects high voltage irregularly, it can lead to a variety of performance problems and potentially cause long-term damage if left unaddressed.

OBDII Code P1106 Chevrolet - Manifold Absolute Pressure Sensor Circuit Intermittent High Voltage
P1106 Chevrolet Code - Manifold Absolute Pressure Sensor Circuit Intermittent High Voltage

Common Causes of P1106 Chevrolet

  1. Faulty MAP sensor
  2. Damaged or corroded wiring in the sensor circuit
  3. Issues with the ECU or related control modules
  4. Vacuum leaks in the intake system
  5. Incorrect sensor calibration or programming

Symptoms of P1106 Chevrolet

  1. Check engine light illuminated on the dashboard
  2. Decreased fuel efficiency
  3. Rough idling or engine misfires
  4. Stalling or hesitation during acceleration
  5. Difficulty starting the engine

How to Fix P1106 Chevrolet

  1. Use a scan tool to retrieve the specific trouble code and data from the ECU
  2. Inspect the MAP sensor, wiring harness, and connections for any visible damage or corrosion
  3. Test the sensor's voltage output and compare it to the manufacturer's specifications
  4. Replace the MAP sensor if it is found to be faulty or out of range
  5. Clear the trouble code from the ECU's memory and test drive the vehicle to ensure the issue has been resolved

Cost to Fix P1106 Chevrolet

The typical repair costs for addressing a P1106 code on a Chevrolet vehicle can vary depending on the specific model and the extent of the issue. In general, replacing a faulty MAP sensor and addressing any related wiring or component issues could range from $150 to $400, including parts and labor. However, it's important to note that diagnostic time and labor rates at auto repair shops can vary significantly based on factors such as location, vehicle make and model, and engine type. It's advisable to consult with a trusted mechanic or dealership for a more accurate estimate based on your vehicle's needs.

When is the Code Detected?

If the Powertrain Control Module (PCM) detects a Manifold Absolute Pressure (MAP) sensor signal voltage that is intermittently high, the P1106 code will set.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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