Gelbster, have you tried the SAI test on cold start while you rev at constant 2500 to 3000 RPM? I fought this issue where everything went ready except SAI and was pulling my hair as I was running out of remedies. Alas, I found a thread where one owner mentioned immediately reving steady state during the first 90 seconds WITHOUT driving the car! I had tallied hundreds of miles without it going ready and within first 90 secs in my garage bingo.
I took my car in for the test a few months ago and they did not run it on Dyno and he did not do a visual.
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