read the codes with something else. I know everyone praises the SCT for tunes, but I've also read codes that didn't show up or came up as different codes with other tuners.

That sounds like something you would definitely notice and not be "losing your mind" on though!

 

Have you checked for water in the filter? Could have been like a misfire.
Thats how mine felt. Like a gas engine with a bad plug.
Will your Superchip read all the codes? I thought it would not read advanced codes like the units used at shops.


Just my Thoughts,
Walt

I now have replaced the 04 wrecked SD. with an '06 4wd SD Crew, 6.0 stock

 

idk if it will or wont read all the codes but my major problem is i work and im a full time student so i have 0 time to get anything done about it...and any time that my truck is down just kills me bc then ive gotta get rides everywhere or try to borrow trucks (im 20 so they wont let me rent a car)