A P0420 diagnostic code on your 2024 Ford Explorer indicates that Bank 1's catalytic converter efficiency has dropped below acceptable thresholds. On a new vehicle, this code requires investigation.
2024 Explorer Engine Options
- 2.3L EcoBoost 4-cylinder: 300 hp
- 3.0L EcoBoost V6: 400 hp
- 3.0L Hybrid V6: 318 hp combined
V6 models have dual exhaust banks - P0420 affects Bank 1. The 4-cylinder has single-bank.
P0420 on New Vehicle
True converter failure is rare on new vehicles. More likely:
- O2 Sensor Issues: Faulty sensors
- Software Calibration: ECM updates
- Exhaust Problems: Manufacturing defects
Warranty Coverage
A 2024 Explorer is fully covered under warranty.