I have 164K miles on my 960. There are no codes but the engine seems lately to start with no surge or authority that it used to do. I hope that makes sense. This is either when hot or cold, the only things not replaced in the last 30k are the fuel injectors or the O2 sensor. The idle also seems to have a intermitent miss, sometime for days it will miss, and then not miss for days, it will even change from stop light to stop light. Items recently replaced in the last year and half: idle valve, intake manifold gasket, both fuel pumps, fuel regulator, back in March I replaced the head gasket and replace all rubber hoses and seals.

Thanks for all comments. Dan Ray