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1992
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Caprice Classic LTZ
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Repair and Diagnosis
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Engine Performance
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System
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Engine Controls - Tests W/Codes - 4.3L TBI
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Pcm/BCM Code Charts
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Code 43, ESC Error, W/O ESC Module
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Test Number 3)
Test Number 3)
This test determines if knock sensor is faulty or if ESC portion of MEM-CAL is faulty.