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Home >> GMC >> 1997 >> Forward Control 4.3 W, L35, Automatic >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 10 (Engine Controls - Tests W/Codes - 6.5L Diesel (P Series)) >> Diagnostic Trouble Codes >> DTC P0272 - Cylinder No. 4 Balance System >> Circuit Description

Circuit Description

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PCM has ability to increase and decrease amount of fuel to each cylinder to provide smooth idle operation. DTC will set if fuel correction amount exceeds defined limits.

DTC will set when the following conditions are present: