1998 Mercedes Benz SLK230 • 4 cylinder • 160,000 miles

I have mercedes 230slk komp it will stars but to but it run. It has had plugs coil packs temp sensor the k20 board has been checked it is also not in the peramerters of the ecu it sound like its missing when I can get it to run for a short time we told buy a diagnostic guy it was problem in the inlet manifold and that there was plastisc injectors inside that rot but we cant find anything problem has been gradule and now to a stop. It also has no lights on dash and no faults on computer
Colin grigg
January 27, 2011.

Have the fuel pump pressure been checked?