Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - Very rough idle on cold start up?
View Single Post
  #9 (permalink)  
Old 03-20-2004, 06:43 AM
TurboS10's Avatar
TurboS10 TurboS10 is offline
Hotrodders.com Moderator
 
Last wiki edit: Auto Terms and Definitions Used in Modern Engine T... Last photo:
Join Date: Sep 2002
Location: Texas
Age: 36
Posts: 3,463
Wiki Edits: 2

Thanks: 0
Thanked 0 Times in 0 Posts
You are running lean. A rough idle and white plugs tells it for sure. An engine needs a much richer mixture to run properly when it is cold. You need to start choking the engine when it is cold. It will cause the engine to draw more fuel and result in a richer mixture. If that does not do the trick, you will probably have to richen the idle mixture. You should adjust the idle mixture anyway, but it should be done when the engine is hot.

Chris
Reply With Quote