Mike's Workshop Manuals
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Lexus
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1993
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SC 400
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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/O Codes
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Symptoms
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Poor DRIVEABILITY
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Muffler Explosion (After Backfire)
Muffler Explosion (After Backfire)
Check switch condition signal. See CODE 51 in appropriate TESTS W/CODES article.
Ensure ignition coil resistance values are within specification.
Check distributor.
Check spark plugs.
Check injector circuit.