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Porsche
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1989
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928 CS V8-4957cc 5.0L
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Powertrain Management
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Ignition System
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Technical Service Bulletins
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Ignition System: Technical Service Bulletins
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Customer Interest
Ignition Circuit Monitor Relay - Unintentional Operation
A/T - Central Tube Shaft Broken
By Symptom
Abnormal wear/deterioration
A/T - Central Tube Shaft Broken
Customer Interest
Ignition Circuit Monitor Relay - Unintentional Operation
A/T - Central Tube Shaft Broken
Erratic Operation
Ignition Circuit Monitor Relay - Unintentional Operation
Out of specification
Fuel/Ignition Modules - Use of Aftermarket Microchips
All Technical Service Bulletins
Ignition Circuit Monitor Relay - Unintentional Operation
Fuel/Ignition Modules - Use of Aftermarket Microchips
Spark Plugs - Install With Threads Clean and Dry
Ignition Monitoring System - Diagnosis
A/T - Central Tube Shaft Broken