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Hummer
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2008
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H3 Alpha
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Repair and Diagnosis (Single Page)
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Engine Performance
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System
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Engine Controls And Fuel - 5.3L - DTC P0335 To DTC P2138
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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