Thread: 1995 E320 diagnostic module Code 4
View Single Post
  #3  
Old 07-18-2016, 06:20 PM
nulu nulu is offline
Registered User
  
Join Date: Feb 2007
Location: los angeles
Posts: 836
If the 02 sensor dosent drop enough when air is injected, ie bad 02 sensor , then it will set that code.
Last edited by nulu; 07-18-2016 at 07:24 PM.
Reply With Quote