vin-based fitment vs mmy
The VIN-Based Secret 99% Of Fitters Miss
The VIN-Based Secret 99% Of Fitters Miss A seasoned installer receives the 'correct' oxygen sensor for a 2010 SUV; it threads in perfectly, but the ECU throws a code the old one didn’t. 2023 saw a surge in fitment errors caused by MMY reliance. The VIN-based secret