[dav968]

Hi all,
I've been having a problem for the last couple years with my 1995 968 and have taken it to a several dealers/mechanics to try to figure out, but no luck so far.
To try to get to the root cause, I recently bought Durametric so I could read engine codes myself.
Here is what I'm seeing.
Mainly when I have a full or nearly full tank of fuel, my car hesitates when I try to accelerate after cruising at a constant speed. Sometimes it comes out of it in 1/2 second, other times it runs rough for a few seconds. Sometimes the engine light comes on, other times not. It does seem to be getting progressively worse, though slowly.
After scanning with Durametric, I saw I had 3 error codes registered, Hall Sensor, (23) Oxygen Regulation / Stop, and (32) Knock Sensor 2.
I've replaced the Hall sensor and both knock sensors, reset codes, took it out for test drive and all seemed great, even seemed to have a little more power (maybe in my head), until I filled it with fuel, then the (23) Oxygen Regulation / Stop, and (32) Knock Sensor 2 error codes were back within 10 minutes.
My assumption is that the (32) Knock Sensor 2 error is leading to the (23) Oxygen Regulation / Stop error, if this assumption is wrong, please correct me.
Has anybody else experienced anything like this?
Any help is much appreciated.