What car did that harness come off of?
My service records indicate that the harness on my 300E had been replaced FOC, but I have an occasional surging idle that I haven't been able to attribute to vacuum leaks or failed components...
2009 ML350 (84K) - Family vehicle
2001 CLK430 Cabriolet (71K) - Wife's car
2005 BMW 645CI (124K) - My daily driver
2012 Mustang V6 (60K) - Daughter's car