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Mercedes Benz
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1990
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300SL (129.061) L6-3.0L (104.981)
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Repair and Diagnosis
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A L L Diagnostic Trouble Codes ( DTC )
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Testing and Inspection
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Manufacturer Code Charts
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Powertrain Management
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Fuel Injection System (CIS-E)
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Impulse Counter
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Code 12 (Ignition Control)
Code 12 (Ignition Control)
Check for defective vacuum line to EZL/AKR control unit and, or defective EZL/AKR control unit.