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 MANUALSCHEVROLET2008CHEVY EXPRESS G2500, VAN CARGO, 6.6 6REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1065 (ENGINE CONTROLS AND FUEL - 6.6L (LMM) - DTC P0016 TO DTC P0299)DTC P0191TYPICAL SCAN TOOL DATA
2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6
Typical Scan Tool Data
2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6SECTION Typical Scan Tool Data
WARNING: This page is about a different car, the 2007 GMC Sierra, 2007 GMC Cab & Chassis Sierra, 2007 Chevrolet Silverado, and 2007 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Actual Fuel Rail Pressure
| Circuit | Short to Ground | High Resistance | Open | Short to Voltage |
|---|---|---|---|---|
| Operating Conditions:
The Ignition ON, with the Engine OFF Parameter Normal Range: 0.352-0.650 volt |
||||
| 5-Volt Reference | 0 MPa (0 psi) | Varies1 | 200 MPa (29,000 psi) | 0 MPa (0.0 psi) |
| FRP Sensor Signal | 0 MPa (0 psi) | Varies1 | 200 MPa (29,000 psi) | 200 MPa (29,000 psi) |
| FRP Sensor Low Reference | - | Varies1 | 200 MPa (29,000 psi) | 2 |
| Fuel Pressure Regulator Solenoid Supply Voltage | 0.2 MPa (34.8 psi)1 | 71 MPa (10,300 psi)1 | 0.2 MPa (34.8 psi)1 | 0.2 MPa (34.8 psi)1 |
| 1
Fuel pressure erratic 2 Opens circuit fuse or opens circuit |
||||
RENDER: 1.0x
NO RELATED
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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.