Intake Valve Control Solenoid Circuit High (Bank 2)
The P0083 code indicates that the Powertrain Control Module (PCM) has detected a high voltage condition in the intake valve control solenoid circuit for Bank 2. This solenoid is part of the variable valve timing (VVT) system, which adjusts intake valve timing to optimize engine performance and emissions. A high voltage signal suggests a short to power, open circuit, or faulty solenoid, potentially causing drivability issues and increased emissions.
1. Most Common Causes
- Short to battery voltage (B+) in the intake valve control solenoid wiring
- Intake valve control solenoid internally damaged (low resistance or shorted coil)
- Corroded, damaged, or moisture-contaminated solenoid connector or terminals
- Intermittent wiring harness fault (chafing, pinching)
- Rare ECM/PCM failure in the solenoid control circuit
2. Symptoms You Will Notice
- Check Engine Light illuminated
- Rough idle or engine misfire
- Reduced engine power and acceleration
- Poor fuel economy
- Engine stalling
3. Step-by-Step Diagnosis
Step 1: Connect an OBD2 scanner and verify the P0083 code. Check for additional codes.
Step 2: Visually inspect the intake valve control solenoid and its wiring for damage, corrosion, or loose connections.
Step 3: Use a multimeter to test the solenoid resistance (typically 6-12 ohms). Compare to manufacturer specs.
Step 4: Check for voltage at the solenoid connector with the ignition on. Should be battery voltage on one pin; if not, check fuses and wiring.
Step 5: If solenoid and wiring are okay, test the PCM output by commanding the solenoid on/off with a scan tool and monitoring voltage.
4. Frequently Asked Questions
Is it safe to drive with this code?▼
It is not recommended to drive long distances with this code, as it can cause poor engine performance, stalling, and potential damage to the catalytic converter due to unburned fuel.
How much does it cost to fix?▼
The cost typically ranges from $150 to $400, including parts (solenoid $50-$150) and labor (1-2 hours at $100-$150 per hour).
5. Commonly Affected Makes
This is a generic OBD2 code, potentially applicable to any manufacturer using this diagnostic standard.