Thanks for all the response.
I have installed the latest software and firmware, and formatted the V2.
The tune file I am using is a tune that I flashed in last autumn, because I needed earlier shift points when the snow arrived. After I flashed it in I become aware that I had flashed in the wrong file, and not the one I had supposed to use. After the test drive I noticed that it had far less cold knock then my summer tune. The engine knock is annoying the first 10 minute after a cold start, and even worse in the winter. So I just let it stay there for the winter.
My pcm is a 9354896 that had 344 in stock and I have tried different os auto ve and so one.
I have newer felt I could trust the result of the tuning, and I feel that the wideband always have tricked me some way.
My maf is a corvette map modified to something by Pro M. It fits nicely in my air duct but it was a bad choice. I have adjusted the table roughly for it but gave up because of the code 8 Lc1.
Table B3601 is 14.63
The software was from mid April. Now everything is updated.
I used black box logging for the convenience. Here is a new log file from today, and my tune file.
My plan was to upgrade to an os that is compatible with the cos. I have tried the 156 and 074. It has always bean something strange with the 156 even though I have started from scratch several times. What os should I go for? Should I buy a newer pcm (411) before I spend time on this, any consideration?
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