P053F-21: Cold Start Fuel Pressure Performance Bank 1 - Signal amplitude < minimum: Action
- Vehicle Conditions to enable DTC Logging Strategy
- Engine running for greater than 1 minute
- Prioritized Checks to Perform
- Check for fuel leaks external of the fuel rail
- Check high pressure fuel pumps are not leaking from the high pressure system into the low pressure system
- Install new components, only when diagnosed as failed