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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET2008CHEVY EXPRESS G3500, VAN PASSENGER EXTENDEDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 12 (ENGINE CONTROL SYSTEM & FUEL SYSTEM - 6.6L (LMM) - DTC P0300 TO DTC P0699)DTC P0405 OR P0406TYPICAL SCAN TOOL DATA
2008 Chevrolet Chevy Express G3500, Van Passenger Extended
Typical Scan Tool Data
2008 Chevrolet Chevy Express G3500, Van Passenger ExtendedSECTION Typical Scan Tool Data
WARNING: This page is about a different variant/trim than selected.
EGR Position Sensor
| Circuit | Normal Range | Short to Ground | Open | Short to Voltage |
|---|---|---|---|---|
| Operating Conditions: Engine Running, ECT sensor is less than 60°C (140°F) | ||||
| EGR 5-Volt Reference Voltage | 0.98 Volts | 0 Volts | 0 Volts | 1.29 Volts |
| EGR Sensor Signal | 0.98 Volts | 0 Volts | 0 Volts | 4.98 Volts |
| EGR Low Reference | 0.98 Volts | - | 4.8 Volts | - |
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.