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Kia
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2005
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Optima EX, 2.7 8
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Repair and Diagnosis
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Engine Performance
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Engine Control System/Fuel System - 2.7L
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General
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Symptom Diagnosis
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Scan tool communication with ECU is not possible
Scan tool communication with ECU is not possible
Fig 1: Scan Tool Communication With ECU Is Not Possible Troubleshooting Flow Chart
Courtesy of KIA MOTORS AMERICA, INC.