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Home >> Chevrolet >> 2007 >> Chevy Express G2500, Van Cargo, 6.6 6 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 17 (Engine Control System & Fuel System - 4.3L - DTC P0507 To DTC P2A04) >> DTC P0651 >> Circuit Description

Circuit Description

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The powertrain control module (PCM) provides 5 volts to the fuel tank pressure (FTP) sensor. The PCM monitors the voltage on the 5-volt reference circuit. If the voltage is out of tolerance, DTC P0651 sets.

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