randomly running rich
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Junior User
Joined: Nov 2003
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randomly running rich
just got past fixing thermactor and EGR codes on my 88 bronco with a 302. now its had the engine light on 2 seperate occasions, once while sitting at a drive thru window, and the other right after taking off fast. both times it was a code 42, o2 indicating rich. the o2 sensor in it is brand new, and i know the EGR is functioning now, checked vacuum and it holds steady. what are some of the things i might wanna start looking at to get this bug out of the system? Thank you very much for all the help youve given me here!
