Ok i had the injectors out cleaned it all out Scv and PRV done as it kept dialing learns and engine management light was on. Can was running rough and once done it was good for a week and then I was getting oil on injectors and pressure unfortunately I then started getting a bad rattle and it sounded like pump which I've taken out. And seen lots of plastic and few bits of metal and then in had oil pressure light on flashing had to keep turning engine off and just got home
My question is can you do pump tensioner without taking chain cover off. I've cleaned a lot of gunk out


