P2092: A Camshaft Position Actuator Control Circuit Low Bank 2
The P2092 code indicates that the engine control module (ECM) has detected a low voltage condition in the camshaft position actuator control circuit for bank 2. This circuit controls the variable valve timing (VVT) solenoid, which adjusts camshaft timing to optimize engine performance and emissions. A low voltage reading suggests a short to ground, open circuit, or faulty component in the circuit, potentially causing poor engine performance, reduced fuel economy, and increased emissions.
1. Most Common Causes
- Internal short circuit in the VVT/VCT actuator solenoid 'A'
- Control circuit wiring shorted to ground
- Open circuit in the solenoid power or control harness
- Damaged, corroded, or loose connector at the actuator or PCM
- Internal output driver failure in the PCM
2. Symptoms You Will Notice
- Check Engine Light illuminated
- Rough idle or engine misfire
- Reduced engine power and acceleration
- Decreased fuel economy
3. Step-by-Step Diagnosis
Step 1: Use an OBD2 scanner to confirm the code and check for additional codes.
Step 2: Visually inspect the wiring and connector for the bank 2 camshaft actuator for damage, corrosion, or loose connections.
Step 3: Test the actuator solenoid resistance with a multimeter (typically 6-12 ohms); replace if out of spec.
Step 4: Check for battery voltage and ground at the actuator connector with the engine running; repair wiring if voltage is low or missing.
Step 5: If all tests pass, suspect a faulty ECM and perform further diagnostics or reprogramming.
4. Frequently Asked Questions
Is it safe to drive with this code?▼
It is not recommended to drive long distances 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 $50 to $150 for parts and labor, depending on whether the issue is a simple wiring repair or solenoid replacement.
5. Commonly Affected Makes
This is a generic OBD2 code, potentially applicable to any manufacturer using this diagnostic standard.