Follow the chip???

Hello.

I built a Blue Diamond chip in my 3.6er two days ago, ran very well, quiet, no speed fluctuations and there was a little improvement from the power. Didn't feel so sluggish when you went up the mountain...
So now I drove on the highway yesterday to test there a little bit if something feels different. Only then it made a little back at about 250 kmh after estimate and I could not really give more big gas. Speed could not go more than 4000 rpm, was then only such a funny roar. I've had it like this before after an engine wash, only then, after about 15 km, it slowly became normal again. Then I went down the next exit and put myself in a parking lot. The engine was still running, but fluctuated at the speed about 400 rpm. It's dead again and again. I then read out today and it showed LMM signal too small, Lambda control limit exceeded sporadic and encoder for engine speed no signal sporadic. I re-installed my old chip this morning and re-read it. Then it only showed the LMM. Then I installed another one and no error was displayed. Then made a test drive, but was not yet quite good, when starting sometimes as if the speed was falling and the consumption was very high. So read out again: Lambda regulation exceeded the limit and Lambda contact errors at mass -sporadic displayed.
Is that the result of the chip or everything just a big stupid coincidence? Has anyone ever done that before?

Best regards from Lake Constance,

Simon