DTC Troubleshooting: P027E, P2DD7 (3.5L Engine) (2025): Notes

DTC P027E  : Cold Start Air Fuel Ratio Control System Command Lean Bank1 DTC P2DD7  : Cold Start Air Fuel Ratio Control System Command Lean Bank2

How to use this service information .

NOTICE: 

Before you troubleshoot, review the How to Troubleshoot - Refer to: How to Troubleshoot the Fuel and Emissions Systems (3.5L Engine) or How to Troubleshoot the Fuel and Emissions Systems (3.0L Engine) .