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Home >> GMC >> 1994 >> Forward Control 7.4 N >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 7.4L >> Trouble Code Charts >> Code 32, EGR CKT Error Models Using Ported Vacuum & EVRV Sol >> Diagnostic Aids
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Diagnostic Aids

Prior to replacing PCM, check resistance of all PCM-controlled solenoids and relays. Replace any with a resistance value less than 20 ohms. EVRV solenoid cannot be checked with a DVOM due to solid state circuitry.

Fig 1: Code 32 Schematic ("C" & "K" Series) EGR Circuit Error Models Using Ported Vacuum & EVR Solenoid
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Fig 2: Code 32 Schematic ("G" Series) EGR Circuit Error Models Using Ported Vacuum & EVR Solenoid
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Fig 3: Code 32 Flow Chart EGR Circuit Error Models Using Ported Vacuum & EVR Solenoid
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