Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSFORD2021TRANSIT-350 HD BASE, VAN CARGO EXTENDED, 3.5L ENG VIN 8, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 499 (ENGINE CONTROLS - DESCRIPTION & OPERATION (DIESEL))
2021 Ford Transit-350 HD Base, Van Cargo Extended, 3.5L Eng VIN 8, AWD
Section 499 (Engine Controls - Description & Operation (Diesel))
2021 Ford Transit-350 HD Base, Van Cargo Extended, 3.5L Eng VIN 8, AWDSECTION Section 499 (Engine Controls - Description & Operation (Diesel))
WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2022 Ford F-550 Super Duty, 2022 Ford F-450 Super Duty, 2022 Ford F-350 Super Duty, 2022 Ford F-250 Super Duty, and 2021 Ford F-550 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
- Vehicle Emission Control Information (VECI)
- Engine Control Components
- Accelerator Pedal Position (APP) Sensor
- Air Filter Restriction Gauge
- Ambient Air Temperature (AAT) Sensor
- Barometric Pressure (BARO) Sensor
- Boost Pressure Gauge
- Camshaft Position (CMP) Sensor
- Charge Air Cooler (CAC)
- Charge Air Cooler Temperature (CACT) Sensor
- Charge Air Cooler (CAC) Coolant Temperature Sensor
- Cooling Fan
- Crankcase Ventilation
- Crankcase Ventilation Heater
- Crankcase Ventilation Sensor
- Crankshaft Position (CKP) Sensor
- Diesel Particulate Filter
- Diesel Particulate Filter Pressure Sensor
- Engine Coolant Temperature (ECT) Sensor
- Engine Oil Temperature (EOT) Sensor
- Exhaust Gas Recirculation (EGR) Cooler
- Exhaust Gas Recirculation (EGR) Cooler Bypass Valve
- Exhaust Gas Recirculation (EGR) Cooler Bypass Valve Solenoid
- Exhaust Gas Recirculation Temperature (EGRT) Sensor
- Exhaust Gas Recirculation (EGR) Valve
- Exhaust Gas Temperature (EGT) Sensor
- Exhaust Pressure (EP) Sensor
- Fan Speed Sensor (FSS)
- Fuel Conditioning Module
- Fuel Cooler
- Fuel Delivery Pressure Switch
- Fuel Injectors
- Fuel Pressure And Temperature Sensor
- Fuel Pressure Control Valve
- Fuel Pressure Relief Valve
- Fuel Pump (FP) Assembly
- Fuel Rail Pressure (FRP) Sensor
- Fuel Rail Temperature (FRT) Sensor
- Fuel Vaporizer System Fuel Pump
- Fuel Vaporizer System Glow Plug
- Fuel Volume Control Valve
- Glow Plug
- Glow Plug Indicator
- High Pressure Fuel Injection Pump
- Intake Air Temperature (IAT) Sensor
- Intake Throttle
- Manifold Absolute Pressure (MAP) Sensor
- Manifold Absolute Pressure Temperature (MAPT) Sensor
- Mass Airflow (MAF) Sensor
- Nitrogen Oxides (NOx) Modules
- Nitrogen Oxides (NOx) Sensors
- Particulate Matter Bank 1, Sensor 1 (PM11) Module
- Particulate Matter Bank 1, Sensor 1 (PM11) Sensor
- Power Take Off
- Powertrain Secondary Cooling System Coolant Pump
- Reductant Heaters
- Reductant Injector
- Reductant Quality Module
- Reductant Pressure Sensor
- Reductant Pump Assembly
- Reductant Purge Valve
- Reductant Temperature Sensor
- Relative Humidity (RHS) Sensor
- Selective Catalytic Reduction (SCR) Catalyst
- Turbocharger
- Turbocharger Actuator
- Turbocharger Inlet Pressure (TCIP) Sensor
- Engine Control (EC) System
- Powertrain Control Hardware
- Powertrain Control Software
- Auto Start Stop
- Brake Over Accelerator
- Computer Controlled Shutdown
- Controller Area Network (CAN)
- Controller Area Network 2 (CAN2)
- Cold Idle Kicker
- Diesel Engine Power Monitor
- Diesel Particulate Filter Regeneration
- Engine Brake
- Engine RPM And Vehicle Speed Limiter
- Engine Shutdown Timer
- Failure Mode Effects Management (FMEM)
- Flash Electronically Erasable Programmable Read Only Memory (EEPROM)
- Fuel Balancing And Control
- Fuel Level Input
- Fuel Mass Observer
- Fuel Trim
- Instrument Panel Cluster (IPC) Message Center Functionality
- Minimum Fuel Mass Adaption
- Multiplexing
- Zero Fuel Calibration
- Malfunction Indicator Lamp (Mil)
- Crankcase Ventilation System
- Exhaust Catalyst And Exhaust System
- Exhaust Gas RECIRCULATION (EGR) Cooler System
- Exhaust Gas RECIRCULATION (EGR) System
- Fuel System
- Intake Air Systems
- Turbocharger And Charge Air Cooler (CAC) System
- On Board Diagnostics (OBD) Monitors
- Boost Pressure Monitor
- Catalyst Efficiency Monitor
- Crankcase Ventilation Monitor
- Comprehensive Component Monitor (CCM)
- Diesel Particulate Filter Monitor
- Exhaust Gas RECIRCULATION (EGR) System Monitor
- Fuel System Monitor
- Glow Plug Monitor
- Misfire Detection Monitor
- Thermostat Monitor
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.