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1992
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Astro Van M V6-262 4.3L VIN W CPI
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Repair and Diagnosis
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A L L Diagnostic Trouble Codes ( DTC )
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Testing and Inspection
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Manufacturer Code Charts
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DTC 03
DTC 03
Fig. 29 Code 3 Diagnosis (Open Dump Valve Or ECU Malfunction). 1992:
