Used Autolite 104s gapped at .55 I researched before I did my Stg 0 or all the maintenance. The coil is brand new so I don't see how changing the coil again would help. If it pops the code again I'm going to take the coil out and check for any corrosion or bad connections. Will the shift kit effects car having the tap shift option? I also forgot to mention I have a 180 thermo