Have just finished installing new main wiring harness & rebuilt gauge cluster, cleaned & serviced injhectors... (plugs, fluids, exhaust...etc.) Car ran ok before...now is over fuelling like mad (20-25 K/100). Afraid to drive for fear of cyliner wall wash.
Anyone have any experience/suggestions...PLEASE????????
Thank you so much for your time.
It's a 1993 SL600 (129)

 

1993 600SL
Pull the vacuum hose on the fuel pressure regulator.
I bet it is leaking fuel like crazy.
Change the regulator!!!
Enjoy the ride!