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Home >> Chevrolet >> 2006 >> Chevy Express G3500, Van Cargo Extended, 6.6 2 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - 6.6L (LLY) - DTC P0016 To DTC P0342 >> DTC P0191 - P0193 >> Typical Scan Tool Data

Typical Scan Tool Data

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