I looked under my hood today to take a look and see if I was still in the mood to run that valve adjustment job. Now I'm not sure. What the heck is that contraption sitting on top of my valve cover? It's some black box with throttle linkage (?) attached to it. Once I disassemble that linkage, does it need a lot of fine tuning? Thanks

Alex

__________________
1983 300D (parked for four years)
2012 VW Sportwagen TDI Manual
2001 Miata SE
1962 Chevrolet Corvair Rampside