Cylinder 2 Exhaust Valve Control Circuit High
The P3416 code indicates that the engine control module (ECM) has detected a high voltage condition in the exhaust valve control circuit for cylinder 2. This circuit controls the variable valve timing or lift mechanism for the exhaust valve. A high voltage reading suggests a short to power, open circuit, or faulty component in the circuit, which can disrupt valve timing and affect engine performance.
01. Most Common Causes
- Faulty exhaust valve control solenoid on cylinder 2
- Short to power in the wiring or connector of the exhaust valve control circuit
- Open circuit or high resistance in the exhaust valve control circuit
- Failed engine control module (ECM)
02. Symptoms You Will Notice
- Check Engine Light illuminated
- Rough idle or misfire on cylinder 2
- Reduced engine power and poor acceleration
- Decreased fuel economy
03. Step-by-Step Diagnosis
Step 1: Use a scan tool to retrieve all stored codes and freeze frame data.
Step 2: Inspect the wiring and connector for cylinder 2 exhaust valve control solenoid for damage, corrosion, or shorts.
Step 3: Test the exhaust valve control solenoid resistance and compare to manufacturer specifications.
Step 4: Check for voltage at the solenoid connector with the engine running; should be within specified range.
Step 5: If wiring and solenoid are okay, test the ECM output for the circuit; replace ECM if faulty.
04. Commonly Affected Makes
05. Frequently Asked Questions
Is it safe to drive with this code?▼
It is not recommended to drive with this code as it can cause engine misfire, reduced power, and potential damage to the catalytic converter. Have the vehicle diagnosed and repaired promptly.
How much does it cost to fix?▼
The cost to fix P3416 typically ranges from $50 to $150 for diagnosis and simple repairs like wiring fixes, but can be higher if the solenoid or ECM needs replacement.