2010 Camaro SS
I put the stock cam back in, and had the dealer put in a new ECM and flash it with the correct vin to put the car back to an auto transmission.
Now the car has a nasty misfire, but only on cylinders 6 and 7; which is very odd.
I pulled the plugs and checked compression, plugs were good, compression was at 152 lbs.
Do I need to do a case relearn?