part throttle buck
double & tripple checked 4 vac. leaks, none. decided 4 the hell of it to rem egr valve last night & it was so nasty. it bas this thick black cruddy build up in it & i mean alot! cleaned it out good & cleaned & used tri-flo lub. on the shaft that the valve moves back & forth on. will reinstall later today. prob. wont make any diff but will try anything at this point. would bad o2 sensors or maf sensor cause car to buck & skip at part throttle?
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