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2000
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Astro Van Cargo, AWD
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Repair and Diagnosis
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Engine Performance
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Testing & Diagnosis
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Engine Controls Self-Diagnostics - 4.3L
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Diagnostic Tests
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DTC P1621: Control Module Long Term Memory Performance
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Diagnostic Aids
July 1:
So it begins
. Don't worry, this is not in the correct legal jurisdiction!
Diagnostic Aids
Replace VCM even if this DTC exists only in history.