So you say the turbo acctuator the same part as the manifold runners .... definatley the same part number ??
So if you swap the motors around the manifold runner that does do its sweep correctly, if you try every motor on that bank do all 3 motors work ??
If yes ,you know its not a motor issue ....well still could be a tracking switch issue but i digress.........
Try leaving both manifold runners motors un plugged so the ecm will drop the limp status value into place for them , switch ignition off for a bit to allow for reboot then see if the turbo acctuator does its sweep .
In fact the sweeps may not take place whilst the codes are logged , the ecm can dissable the function. I assume you havent got a code reader that you can use to clear down .
Try this un plug both manifold runners plugs , dissconnect battery negative lead and hold over on to positive terminal for 30 seconds or so ...this is called HBR ...... hard battery reset ......it draws down all memory holding capacitors and any kam memory functions , then see if turbo acctuator does a sweep .
Lee
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