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Home >> Chevrolet >> 2009 >> Chevy Express G2500, Van Passenger >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 3 (Engine Control System & Fuel System - 6.6L LMM - Introduction) >> Repair Instructions >> Fuel Injector Flow Rate Programming >> Circuit/System Verification

Circuit/System Verification

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Review the Display ECM & GPCM Inj. Flow Rates parameter with a scan tool. All cylinders should be programmed with a flow rate number. Both the GPCM and the ECM should be programmed with the same flow rate numbers for the corresponding cylinders.

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