The P1349 code in your 2023 Lexus ES indicates a malfunction in the VVT-i (Variable Valve Timing with intelligence) control position. This Toyota/Lexus-specific code signals the engine computer cannot properly control the camshaft timing position.
Lexus VVT-i System
The ES uses dual VVT-i to optimize valve timing for performance, efficiency, and emissions. The system adjusts both intake and exhaust camshaft timing based on driving conditions. P1349 indicates a control position error.
Common Causes of P1349
- Low or contaminated engine oil
- VVT-i oil control valve (OCV) failure
- Clogged oil passages to VVT
- VVT actuator wear
- Timing chain issues
- ECU control circuit problems
Symptoms of VVT-i Malfunction
- Check engine light on
- Rough idle
- Reduced power
- Poor fuel economy
- Engine rattle at startup
- Hesitation during acceleration
Lexus Premium Expectations
The ES is known for smooth, refined operation. VVT-i issues disrupt this refinement and should be addressed promptly to restore the expected luxury driving experience.