Engine-CodesChevrolet – P1183 Chevrolet

P1183 Chevrolet Code - Supercharger Inlet Pressure Sensor Circuit Low Voltage

Quick Answer

The P1183 code for Chevrolet vehicles indicates a problem with the supercharger inlet pressure sensor circuit, specifically signaling low voltage. Common causes include Faulty supercharger inlet pressure sensor, Damaged wiring or connectors in the sensor circuit, ECM software issues. 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 Chevrolet 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 software issues.
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 Chevrolet Description

The P1183 code for Chevrolet vehicles indicates a problem with the supercharger inlet pressure sensor circuit, specifically signaling low voltage. In supercharged engines, the supercharger increases the air intake to the engine, enhancing performance. The supercharger inlet pressure sensor plays a crucial role in monitoring the pressure of the air entering the supercharger, allowing the engine control module (ECM) to adjust the fuel delivery and ignition timing accordingly.

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

Common Causes of P1183 Chevrolet

  1. Faulty supercharger inlet pressure sensor
  2. Damaged wiring or connectors in the sensor circuit
  3. ECM software issues
  4. Supercharger belt slippage
  5. Supercharger inlet blockage or restriction

Symptoms of P1183 Chevrolet

  1. Decreased engine performance
  2. Reduced fuel efficiency
  3. Engine misfires or stalling
  4. Lack of power
  5. Rough idling

How to Fix P1183 Chevrolet

  1. Diagnose the issue by using a scan tool to check for the P1183 code and perform a visual inspection of the supercharger inlet pressure sensor and wiring.
  2. Test the supercharger inlet pressure sensor using a multimeter to determine if it is functioning correctly.
  3. Inspect the wiring and connectors for any signs of damage or corrosion, repairing or replacing as necessary.
  4. Check the supercharger belt for proper tension and alignment, adjusting or replacing if needed.
  5. Clear the fault code and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P1183 Chevrolet

The cost of repairing a P1183 code on a Chevrolet vehicle can vary depending on the specific cause of the issue and the extent of repairs needed. In general, the cost of replacing a faulty supercharger inlet pressure sensor can range from $100 to $300, including parts and labor. Additional costs for wiring repairs or supercharger belt replacement may increase the total repair bill.

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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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