This does sound like the same as happened to me, the loss of power, warning lights, etc. My understanding was that it was a manufacturing fault, affecting some of the first production batch of 2.2d engines. Incomplete flushing of the engine during assembly allows some very fine oil ways feeding the turbo bearings to remain partly blocked, starving them of oil. As I understood it, the turbo itself was a new design (something to do with the bearings) and had quite a high oil demand. I saw the failed turbo, there was about 2-3mm play in the shaft and bearings. The camshaft was affected by the same issue. Suggest you contact Mazda directly if the dealer is unsure, my dealer at the time had no issues getting it sorted, other than it took some time to get the parts.
Alan
Edit - just reread my description at the time, it was actually debris from improperly hardened camshaft which blocked the oil ways. Memory obviously not what it was...