Hi guys i have a 1.4 mk4 golf s just drove to surrey drove a dream but unfortunatly the roads we went on wernt to good so hit the bottom of the car twice i was going slow but sounded painfull thn on the way home exhaust emisions light came on and epc lights came on and lost all power so now top speed 30 i pulled over turned off engine restarted and only emmisions light came back and ran fine for the rest of the journey hmm any ideas lambda phrobe? Cheers once again josh