I have 96 ranger v6 4x4 3.0 xlt, I'm having problems with ranger it hesitates and bucks, jerks. I don't know what the hell is going on with truck, I changed fuel filter about 3 years ago, plugs and wires about 2 1/2 years ago I just recently changed coil pack and cam sensor air filter added a bottle fuel injecter cleaner (techron) went through a full tank and repeated the same step and it still hesitates and bucks jerks, sometimes it stops for a while and then it starts right back. I went to pepboys for a code reading and four codes came on p0135 oxygen 02 sensor heater circuit malfunction(bank 1, sensor 1) front oxygen sensor on bank 1, p1131 lack of upstream heated oxygen sensor switch- sensor indicates lean - bank no. 1 p1132 lack of upstream heated oxygen sensor switch- sensor indicates rich bank no. 1 p1443 evaporative emission control system vacuum system- purge control solenoid or purge control valve fault. Can a bad oxygen sensor cause it buck and jerk hesitates, Can a cam synchronizer cause this or tps??