Hello new to the forum I have a 1989 Chevy Silverado with the 6.2 diesel I recently turned the fuel screw up on my truck and now I have a higher then normal idle issue I have had these pumps apart on theses trucks a few times but never came across and issue like this I turned the fuel screw up and now the truck is idling to high I did not adjust the govenor rod it doesn’t
Seem to be adjustable on this truck anyways I checked the idle screw on the driver side throttle linkage still no change took all cables off the linkage still no change starter turning the fuel screw back down still no change I am not sure what to do now I don’t really want to turn the fuel screw back to stock if I don’t have to I’ve owned a few of these trucks over the years one I didn’t care about I cranked the fuel screw all the way up on and even it didn’t high idle any help would be appreciated