I have a Mazda 2000 sp20 2.0L 4wd manual and someTimes when I'm driving along it and it cuts out. The revs drop and engine doesn't die but the throttle doesn't respond either. Once I turn key off then back on it starts Fine and goes like nothing has ever happened. It can go months without happening and other days it happens multiple times in one day.I have had it on diagnostics but computer logs no problems. Please help!
Without any trouble codes it is not going to be easy to diagnose such problems and even more so when it is intermittent. Since problem is rectified when restarting, it could be a failing engine control unit.