Check engine light the code is p0203 cylinder2 misfire detected
When the car gets hot start shackingTrouble codes p0203cylinder 2 misfire on 1999 Dodge Durango
That code indicates a misfire on cyl. #-3! Good, complete tune up should take care of that.
2 more answers
agree with #2 ck wiring at #3 injector
p0203 indicates injector #3 control circuit, p0302 or p0303 is misfire codes for #2 .