service engine light on

[dragway]

I have a engine light with code 12 runs rough like vacuum sprayed around could not find leak. thanks for info

 

[granatl]

I have a engine light with code 12 runs rough like vacuum sprayed around could not find leak. thanks for info

Code 12 isn't an error.
http://www.gnttype.org/maint/malf.html

 

[williamsGN]

If the check engine light is on, you have more than a code 12 likely. Code repeats itself three times, then moves on to the next code.