I have a bently CD but it seems very useless as a locator. If anyone can tell me how to use the bently as a component locator or knows the location of the sensors I would be greatly appreciative. Knocks at weird times, sometimes right before 2-3 and 3-4 (auto) shift and at intermittent times when crusing under light load. Same fuel in my 1997 (93 octane) does not exibhit the problem. This is where I am starting but any other comments would be nice.

I am also wondering for my 1992 100 where the knock sensors are located and where to get some cheap. My check engine light fault code is telling me that I have a mis functioning Knock Sensor ect...
Code 2144
Thanks for the help