Operation CHARM
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BMW
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1988
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325i Convertible (E30) L6-2494cc 2.5L SOHC (M20)
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Repair and Diagnosis
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Powertrain Management
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Relays and Modules - Powertrain Management
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Relays and Modules - Computers and Control Systems
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Engine Control Module
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Technical Service Bulletins
Engine Control Module: Technical Service Bulletins
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Customer Interest
ECM - Rough Engine Idle/Poor Throttle Response
All Technical Service Bulletins
ECM - Codes and Hardware Numbers
ECM - Replacement Precautions, Ignition Coil(s)
ECM - Wrong Readings: Engine Speed,Load Signal,Timing
Engine Controls - DME M1.3 Sensitivity
Overview
Situation:
Case 1 - Check Engine Light On
Case 2 Contol Unit Needs Encoding
Parts Information
Warranty Information
ECM - Ordering Information For Reference Chart
ECM - Rough Engine Idle/Poor Throttle Response