Chevrolet Matiz throttle problem

Car: Chevrolet Matiz
Variant: 1.0 SE Manual
Model Year: 2005
Same as below, checked everything for air leaks etc did the below get fixed and if so how?
Posted: Oct 25, 2021 (3 years ago)
Same as below ???
Posted Oct 25, 2021 (3 years ago)
Sorry I thought I had reposted an old post from 2014 from another member

The revs are very slow indeed to come off when changing gear and even rise a lot when changing up, the car has only done 45,000 miles and has been checked at Chevrolet dealership who found no fault with diagnostic tests, and commented it was a design fault with this model. I have spoken to at least three owners of the same model Matiz and none have the same problem as mine, I would welcome any suggestions please.
Posted Oct 25, 2021 (3 years ago)
No problem . I would try cleaning the idle air control valve and throttle body first or , if needed , replace IAC valve .
Posted Oct 25, 2021 (3 years ago)

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