Jims86
Full Access Member
- Joined
- Aug 3, 2010
- Posts
- 5,492
- Reaction score
- 135
- Location
- Patterson,Ca
- First Name
- Jim
- Truck Year
- 1986
- Truck Model
- K10 Suburban Silverado
- Engine Size
- 5.7 TBI
Right, what i was trying to say was the light comes on hwy speed, but goes back off. When I check the codes all i get is a 12. Sorry for the confussion. I have had a severe viral infection / cold all week and Im not 100%. So please bare with me if I come off as loopy, its just the medication im on.
Make sure the EGR valve is not stuck.
each code will flash 3 times, so check it again, 12 is always the first code....see if you get anything else.