P05CE

Symptoms

• Check Engine Light Is On During Cold Start
• Unstable engine operation and cold emissions
• Increased fuel consumption during warm-up period
• Delayed warm-up of the catalytic converter
• Increased emissions in the first minutes of engine operation

Causes

• Inappropriate engine oil viscosity (too high for low temperatures)
• Bank 1 Exhaust Shaft VVT Solenoid Contaminated or Failure
• Bank 1 exhaust camshaft phase shifter wear
• Insufficient oil pressure during cold start
• Bank 1 Exhaust Camshaft Position Sensor Malfunction

How to Fix

1. Check the type and condition of the engine oil; replace with one that complies with the manufacturer's recommendations
2. Read frozen frame codes and data; compare with codes P05CC (intake bank 1) - if both are present, a systemic cause is possible
3. Find Bank 1 Exhaust Camshaft VVT Solenoid from Engine Diagram
4. Check the electrical resistance of the solenoid (typically 7–12 ohms); wash or replace if abnormal
5. Check the oil pressure in the VVT system during a cold start
6. When saving the code after flushing the solenoid, check the condition of the exhaust shaft phase shifter

Related codes

Error P05CE by Vehicle Brand