Author Topic: Exhaust Emissions  (Read 842 times)


  • Vintage
  • ***
  • Posts: 518
  • 1975 450SE
  • Location: Massachusetts, USA
Exhaust Emissions
« on: 30 May 2008, 05:21 PM »
Hi All,

I've been working on replacing the sensors in my 75 450SE. I changed the coolant temperature sensor and now I get lots of white smoke on a cold start on a cold day and a really heavy exhaust stink from the tailpipe. Do I need to make adjustments of the air/ fuel mixture after changing sensors?  What would cause the exhaust to smell so bad?