Thanks to both hassmaschine and E92_William. You have some good points there about load and error codes which I did not think of earlier. I certainly had DISA error codes after I did the tune with the old manifold still on the engine. Next I will try by connecting the DISA valve to the DISA-2 connector and then clear the code for DISA-2. Maybe the results will be different when I rev up after that. I have very little reason to suspect my valves because they are brand new and I can get them to open and close on demand on INPA.
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