已经全部搞定了，油表不准JS说可能是刚拆过油箱，要用一段时间就会自动恢复，目前的确已经恢复了

清洗油泵？怎么洗的？400元？糊弄人呢吧？

according to the condition:
1.oil filter jam(half an hour traffic jam-----cause lower oil pressure can not wash the oil filterclean----the same as driving your car at low speed(40-50)in
long time------the latter situation I have met)
2.carbon accumulated on valves( half an hour traffic jam)

solution:
1.low auto speed,high engine speed for 2 minutes( try several times)
2.add oil addition