My vehicle has been down for almost 6 weeks due to unavailability of a replacement part. Several hundred dollars spent sending failed unit to be tested, replacing ignition coils and plugs. Had mobile mechanic to my house to determine the issue prior to sending the unit to be repaired. PCM was returned to me and noted to be repairable by Module Experts in Florida. It appears that by other complaints that this is a manufacturing or programming error and Mazda should pay for any and all repairs. Still looking for a replacement PCM.