Engine-CodesBuick – P1183 Buick

P1183 Buick Code - Supercharger Inlet Pressure Sensor Circuit Low Voltage

Quick Answer

The P1183 Buick code indicates a problem with the supercharger inlet pressure sensor circuit, specifically that the voltage is too low. Common causes include Faulty supercharger inlet pressure sensor, Damaged wiring or connectors in the sensor circuit, ECM malfunction. 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
P1183 Buick indicates Supercharger Inlet Pressure Sensor Circuit Low Voltage.
Common causes
Common causes include Faulty supercharger inlet pressure sensor, Damaged wiring or connectors in the sensor circuit, ECM malfunction.
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 P1183 Buick Description

The P1183 Buick code indicates a problem with the supercharger inlet pressure sensor circuit, specifically that the voltage is too low. The supercharger inlet pressure sensor is a crucial component in the vehicle's forced induction system, responsible for monitoring the pressure of the air entering the supercharger. This information is used by the engine control module (ECM) to adjust fuel delivery and ignition timing to optimize performance and efficiency.

OBDII Code P1183 Buick - Supercharger Inlet Pressure Sensor Circuit Low Voltage
P1183 Buick Code - Supercharger Inlet Pressure Sensor Circuit Low Voltage

Common Causes of P1183 Buick

  1. Faulty supercharger inlet pressure sensor
  2. Damaged wiring or connectors in the sensor circuit
  3. ECM malfunction
  4. Low engine oil level
  5. Supercharger belt slipping or damaged

Symptoms of P1183 Buick

  1. Reduced engine performance
  2. Poor acceleration
  3. Decreased fuel efficiency
  4. Engine misfires
  5. Engine stalling or failure to start

How to Fix P1183 Buick

  1. Begin by verifying the code with a diagnostic scan tool.
  2. Inspect the supercharger inlet pressure sensor, wiring, and connectors for any visible damage or corrosion.
  3. Test the supercharger inlet pressure sensor using a multimeter to determine if it is functioning correctly.
  4. If the sensor is faulty, replace it with a new one and ensure proper installation.
  5. Clear the code from the ECM's memory and test drive the vehicle to confirm that the issue has been resolved.

Cost to Fix P1183 Buick

The typical repair costs for addressing a P1183 Buick code can vary depending on the specific cause of the issue. Generally, the cost of replacing a supercharger inlet pressure sensor can range from $100 to $300, including parts and labor. Additional costs may be incurred if there are wiring or connector issues that need to be repaired. It's advisable to check with local auto repair shops for accurate pricing, as rates can vary based on location and other factors. It's important to address this issue promptly to prevent further damage and ensure optimal vehicle performance.

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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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