日产CD20是3缸

As they are, I raise the case to see if anyone can give me some idea, the engine is Nissan Sentra CD20, with hydraulic dumps, started starting failing in 3 cylinders, loosening the pipe of the injector 4, and purge it on and accommodated and for the whole day it did not fail anymore, I took the firefighter I checked the injectors and pump and they are well Poquito I stayed more serene but we started and started in 3圆柱体，无论我们放松了多少喷油器4-缸喷射管，他们告诉我，它可能是一个没有强度的液压剂，因此它不会打开4个阀门，因此不会压迫，可以吗？您如何在外面尝试液压机器人？还有其他想法吗？

您只是在谈论Taes，我也想象它们是否很多，所以一个人会观察到污垢的油