88 D100 issues

Another test some people talk about to test the 2 throttle body injectors.

Being careful not to drop parts down the throttle body intakes.

Remove the 2 plastc injector cover domes. Then unplug the injector wiring plug from one side, then start it up and see how it runs. Then plug it back in and unplug the other injector wiring plug. Start it up and run and see how that side runs.

Compare how it runs between the 2 sides, if there is a big difference then one of the injectors is plugging off. (or both)

Can pull the 2 injectors out and soak the tips in carb cleaner for a half hour. Blow them out with compressed air, reinstall and try again.