Miata Parts, Intakes, Superchargers, Headers, Exhausts, Shocks, Springs, Sway Bars, Brake Kits, Autocross and track mods.
1 post • Page 1 of 1
My 2016 ND has an Edelbrock Supercharger w/their version 5 tune installed. I am getting a random PO421 code. I clear it and it will come back eventually. Anyone else having this problem? Have you found a cure?