HI, ok, I started out up a 6% grade from a right hand turn, as i was shifting up I kind of bumped the gear a little to hard and immediately got the check engine light with the motor being de rated, I stopped at the top of the hill and got the "92" code. So i shut the motor down for like 30 minutes and started again, checked the code again and it flashed "55". I know the 92 is IVA and 55 is no code since time of ignition being on. I pulled the Valve cover on 1 and 2 and didn't see any loose connections or anything. should I take it in and replace the IVA's or keep running and see what happens?