Operation CHARM
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Hyundai
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1990
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Sonata L4-2.4L
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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
Engine - Idle Surge/Rough Idle
Engine - Stalls On Initial cold Start
Engine - Stalls Shifting Into Gear At Idle
All Technical Service Bulletins
Engine Controls - ECM Replacement and Testing Procedures
Engine Coolant Temperature Sensor - Diagnosis
Engine - Idle Surge/Rough Idle
Engine - Stalls On Initial cold Start
Scan Tool - Software Update Procedure
Engine - Stalls Shifting Into Gear At Idle
ECU - Testing Precautions