View Single Post
Old 11-04-2008, 11:34 PM   #24 (permalink)
herp derp Apprentice
Join Date: Oct 2008
Location: Lawrence, KS
Posts: 1,049

Saturn-sold - '99 saturn sc1
Team Saturn
90 day: 28.28 mpg (US)

Yukon - '03 GMC Yukon Denali
90 day: 13.74 mpg (US)
Thanks: 43
Thanked 331 Times in 233 Posts
12 is something like no camshaft position sensor signal or something like that... they all show it as a current code when the engine isnt running

the egr...well youre pretty much going to have to diag. that. sensors not directly related to the egr system i would consider unlikely causes. more likely would be the valve itself, vacuum leak in the hoses controlling the egr, solenoid, or it seems like theres a egr temp sensor , atleast on some, blocked passages...

head gasket leaks could cause a laundry list of problems...
  Reply With Quote