I just had a pcm tuned and everything is fine except the "service engine soon " light will flash then stop but goes out. THis will do this several times while driving but does not throw a code. Does anyone have ideas??

 

so you have already used a scantool?

 

I have a Superchips tuner that I only use for diagnostics. Came up nothing??

 

was the light on when you scanned?