Mike's Workshop Manuals
: Service manuals for every vehicle
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Cadillac
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1987
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Seville
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Repair and Diagnosis
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Engine Performance
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System
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DFI ECM Tests W/Codes
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Diagnosis & Testing
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Hard Code E021 - Shorted Throttle Position Sensor CKT
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Test Conditions:
Test Conditions:
RPM between 25 and 1000.