My Zed Has been surging when im just driving normally and go to change gears from 2nd to 3rd. I have i guy i know working that used to own a workshop now does it from home. He his tried alot the spark plugs, coil packs, air flow meter etc? Does anyone have any ideas on what the problem could be??
O2 sensors dying or dead O2 sensors will cause hesitation and surging between gears. Easy test is to disconnect your O2 sensors and if the problem goes away, you have found the problem. Cheers
