2012 Kenworth T800 with Cummins isx15 cm2250. Had a problem with chuffing and boost going up and down at idle and of course rough idle as a result. Took actuator off the turbo and checked the actuator lever on the turbo and couldn't move it, so I removed the turbo, cleaned it and got lever moving freely. When reinstalled I lighted up the lever to the right and actuator gear to 22.5 degree mark. Reinstalled everything and truck ran great no issues, but it gave me actuator fault code. Had a…
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