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Porsche
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1988
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928 S4 V8-4957cc 5.0L
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Repair and Diagnosis
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Powertrain Management
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Computers and Control Systems
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Testing and Inspection
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Reading and Clearing Diagnostic Trouble Codes
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Reading Diagnostic Trouble Codes
Reading Diagnostic Trouble Codes
Connect system tester 9268 to the plug connection on the
control unit
mounting plate. Operate the tester according to the instructions.