Jetta Sedan L5-2.5L (CBTA) (2009)
Idle Speed: Specifications
Multiport Fuel Injection
Technical Data
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Applies to manual and automatic transmission. If voltage supply of Engine Control Module (ECM) drops below 12 volts, idle speed is raised in
stages up to 780 RPM. Idle speed is not adjustable.
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Replace the ECM. Refer to --> [ Removal and Installation ] See: Computers and Control Systems/Engine Control Module/Service and Repair.