Throttle Link Rod
WARNING: This page is about a different car, the 1991 Volvo 940, 1991 Volvo 740, and 1991 Volvo 240. However, it is still accessible from the selected car via links, so may be relevant.
Install a .004" (.10 mm) feeler gauge between throttle pulley and idle stop. See Fig 1 . Ensure distance between throttle lever and adjustment screw is .004" (.10 mm). If measurement is not within specification, adjust link rod.