Purpose to to adjust intervention switch. In this video you will see control of Mazda 13B Omp Mikuni pump stepper motor regulating from 0 to more than 50 steps. Pump is used to measure a bring lube oil to injector rotor sealing of Wankel engine 13B. With this simulation with Arduino is possible to reach Mazda target and "tune" intervention switch used for initial ECU setting to avoid limp mode error DTC 1688
