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 MANUALSCHEVROLET2019EXPRESS 2500 BASE, VAN CARGO EXTENDED, 6.0L ENG VIN GREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 98 (ENGINE CONTROLS AND FUEL - 4.3L (LV1) - SCHEMATIC WIRING DIAGRAMS)
2019 Chevrolet Express 2500 Base, Van Cargo Extended, 6.0L Eng VIN G
Section 98 (Engine Controls And Fuel - 4.3L (LV1) - Schematic Wiring Diagrams)
2019 Chevrolet Express 2500 Base, Van Cargo Extended, 6.0L Eng VIN GSECTION Section 98 (Engine Controls And Fuel - 4.3L (LV1) - Schematic Wiring Diagrams)
WARNING: This page is about a different car, the 2018 GMC Savana 3500, 2018 GMC Savana 2500, 2018 Chevrolet Express 3500, and 2018 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.
- Schematic Wiring Diagrams
- Engine Controls Wiring Schematics
- Power, Ground, Serial Data and MIL
- 5V1 and Low Reference Bus (1 of 2)
- 5V2, 5V3, 5V4, and Low Reference Bus (2 of 2)
- Engine Data Sensors - Pressure, Temperature and Throttle Controls
- Engine Data Sensors - Oxygen Sensors
- Engine Data Sensors - Accelerator Pedal Position Sensor
- Ignition Controls - Ignition Coils Bank 1
- Ignition Controls - Ignition Coils Bank 2
- Ignition Controls - Crankshaft Position, Camshaft Position, Knock Sensors and Camshaft Position Actuator
- Fuel Controls - Fuel Pump Control
- Fuel Controls - Fuel Injectors and Fuel Pressure
- Fuel Controls - Evaporative Emissions Controls
- Controlled/Monitored Subsystem References
- Engine Controls Wiring Schematics
RENDER: 1.0x
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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.