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 MANUALSCHEVROLET2006CHEVY EXPRESS G3500, VAN CARGO, 4.8 VREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 10 (ENGINE CONTROL SYSTEM - 6.6L (LLY) - DTC P0016 TO DTC P0342)DTC P0191 - P0193TYPICAL SCAN TOOL DATA
2006 Chevrolet Chevy Express G3500, Van Cargo, 4.8 V
Typical Scan Tool Data
2006 Chevrolet Chevy Express G3500, Van Cargo, 4.8 VSECTION Typical Scan Tool Data
WARNING: This page is about a different variant/trim than selected.
Actual Fuel Rail Pressure
| Circuit | Short to Ground | High Resistance | Open | Short to Voltage |
|---|---|---|---|---|
| The Ignition ON, with the Engine OFF Parameter Normal Range: 0.5 MPa (72 psi) |
||||
| 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) | Note2 |
| Fuel Pressure Regulator Solenoid Supply Voltage | 71 MPa (10,300 psi)1 | 71 MPa (10,300 psi)1 | 71 MPa (10,300 psi)1 | Varies1 |
| 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.