Mike's Workshop Manuals
: Service manuals for every vehicle
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Hummer
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2008
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H2 4D Utility Pickup
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Repair and Diagnosis
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Engine Performance
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System
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Engine Controls And Fuel - 6.2L - DTC P0300 To DTC P1175
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DTC P0446
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Typical Scan Tool Data
Typical Scan Tool Data
FTP Sensor Signal Voltage
Fuel Tank Pressure
1.5 V
Atmospheric Pressure/BARO
Less than 1.5 V
Positive Pressure
More than 1.5 V
Negative Pressure/Vacuum