yup, we should insist to have the nominal idle speed set to 700 rpm. this should solve the problem. i hope this can be easily adjusted through MUT programming by the casa.
lifting from the pages of the service manual, the following are the probable causes of incorrect idling speed:
PROBABLE CAUSES
Failed ignition system
Failed fuel system
Failed air-fuel ratio control system
Failed intake and exhaust air system
Failed exhaust gas cleaning system
Contamination around the throttle valve
Timing chain in out of place
Improper compression pressure
Failed variable valve timing control system
Failed engine-ECU <M/T> or engine-A/T-ECU <A/T>



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