Fault code P0082 – a step-by-step guide to diagnosing and fixing it

Error code P0082 is displayed and the check engine light is on - what does this mean?

The OBD/EOBD system has detected a low input voltage level in the intake valve position circuit for bank 2. This DTC P0082 relates to the variable intake system and can be interpreted slightly differently for different manufacturers, although the basic problem with the voltage supply in the intake valve system remains the same.

What causes can this error code have?

• Defective intake valve actuator
• Damaged wiring to the intake valve
• Corroded or loose plug connections
• Defective engine control unit (ECU)
• Short circuit in the electrical circuit
• Defective voltage regulator
• Damaged fuse in the intake system
• Mechanical blockage of the intake valve

What symptoms occur in parallel with fault code P0082?

• Loss of power: Reduced engine power, especially at higher engine speeds
• Uneven idling: Engine runs unevenly at idle speed
• Poor acceleration: Delayed response when accelerating
• Increased fuel consumption: Engine operates inefficiently
• Starting problems: Difficulty starting the engine, especially when the engine is cold
• Check engine light: Permanent display of the check engine light

How to fix the problem of error code P0082?

• The repair requires a systematic approach to identify the cause.
• Check and replace the defective intake valve actuator including wiring and plug connections
• Repair or replacement of the damaged wiring harnesses between the ECU and inlet valve, followed by a functional test
• Cleaning of all plug connections and contacts in the intake system with contact spray and replacement of corroded plugs
• Replacing the engine control unit after excluding all other components and programming the new ECU
• Localization and elimination of short circuits in the circuit by means of continuity testing and insulation measurement
• Checking and replacing the voltage regulator and all associated fuses in the intake system