was on the freeway on sat night and thought i would get into the throttle abit. just went about 50-60% throttle and only hit about 8psi (on my autometer) so prolly 6-7 psi actual, car pulled great and appeared to be fine. right after that the car was running rich if i left my foot steady on the throttle and would have to pump it a couple times and the a/f would come back to an acceptable % and run good, or if i accelerated it would sound like it was misfiring then suddenly run perfect and push you back in the seat.
i ran some datalogging when i got home and saw that somehow the stock ecu is trying to give the car about 50% more fuel than previous in these areas of idle and cruise. a good idle for me at 14.7-1 is right at about 1.9-2.0ms on my 660's @ about 750 rpms. now it is 3.0ms at idle and none of my eu settings have changed. i compared data and reloaded my settings and no change.
oh ya, no cel lights or trouble codes from the eu either. will go out and start looking right now for a loose hose or coupling, but feel that may not be it. anyone had this happen?

 

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just looking for a few ideas here, i have already checked my muffler bearings and lubed my wipers.