Engine-CodesCadillac – P1107 Cadillac

P1107 Cadillac Code - Manifold Absolute Pressure Sensor Circuit Intermittent Low Voltage

Quick Answer

The P1107 diagnostic trouble code (DTC) for Cadillac vehicles refers to a Manifold Absolute Pressure (MAP) sensor circuit intermittent low voltage. Common causes include Faulty MAP sensor, Damaged wiring or connectors in the sensor circuit, Vacuum leak in the intake system. 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
P1107 Cadillac indicates Manifold Absolute Pressure Sensor Circuit Intermittent Low Voltage.
Common causes
Common causes include Faulty MAP sensor, Damaged wiring or connectors in the sensor circuit, Vacuum leak in the intake system.
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 10, 2024
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Code P1107 Cadillac Description

The P1107 diagnostic trouble code (DTC) for Cadillac vehicles refers to a Manifold Absolute Pressure (MAP) sensor circuit intermittent low voltage. The MAP sensor plays a crucial role in the engine's operation by measuring the pressure of the air entering the intake manifold. This information is vital for the engine control unit (ECU) to calculate the appropriate air-fuel mixture for combustion. When the ECU detects a low voltage signal from the MAP sensor circuit intermittently, it triggers the P1107 code.

OBDII Code P1107 Cadillac - Manifold Absolute Pressure Sensor Circuit Intermittent Low Voltage
P1107 Cadillac Code - Manifold Absolute Pressure Sensor Circuit Intermittent Low Voltage

Common Causes of P1107 Cadillac

  1. Faulty MAP sensor
  2. Damaged wiring or connectors in the sensor circuit
  3. Vacuum leak in the intake system
  4. Issues with the ECU

Symptoms of P1107 Cadillac

  1. Reduced engine performance
  2. Poor fuel efficiency
  3. Hesitation or stalling during acceleration
  4. Rough idling
  5. Engine misfires

How to Fix P1107 Cadillac

  1. Begin by visually inspecting the MAP sensor, wiring, and connectors for any signs of damage or corrosion.
  2. Test the MAP sensor using a multimeter to ensure it is functioning within the manufacturer's specifications.
  3. Check for vacuum leaks in the intake system by performing a smoke test or using a vacuum gauge.
  4. If the issue persists, consult a diagnostic scanner to monitor the MAP sensor's output voltage while the engine is running to pinpoint any intermittent drops.
  5. If necessary, replace the faulty MAP sensor, repair damaged wiring or connectors, fix any vacuum leaks, or reprogram the ECU as needed.

Cost to Fix P1107 Cadillac

The cost of repairing a P1107 code can vary depending on the specific cause of the issue. Generally, replacing a MAP sensor can cost between $50 to $200, while addressing wiring or connector problems may add to the total cost. Labor rates at auto repair shops typically range between $80 and $150 per hour, so the total repair cost can amount to a few hundred dollars. It's advisable to consult with a trusted mechanic or dealership to get an accurate estimate based on your vehicle's make and model.

When is the Code Detected?

If the Powertrain Control Module (PCM) detects a Manifold Absolute Pressure (MAP) sensor signal voltage that is intermittently low, the P1107 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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