Gary
When set to manual, I think the ignition must be on and the engine might even have to be running to adjust the IACV position. It did take me a while to suss it, but it will definately increment on the screen. Once set, I then switch to 'OFF' and it retains the manually set position.
I am no expert and am learning all the while, so this is only a suggestion.
Andy Mac C7 GON
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