RepairPal Certified shops can diagnose and repair your 2003 Mitsubishi Montero. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.
Ok so if you replaced bank 1 sensor one then just follow the exhaust down past the sensor you already replaced. Sensor 2 will be located right after the cat. Its the only other sensor on that side.
Alex