The P0660 code is for a malfunction of the VICS solenoid. It is definitely tied to the VICS system. A new solenoid will almost certainly clear that P0660 code. Although they are around $70 from the dealer so check the connections and wiring first.
FSM page 01–02B–119
Quote from cheesehelmut Oct. 2009: Just ordered the solenoid from mazda, the part number is FS05-18-741 and it cost $72. Hopefully they'll have it by the end of the week.
http://www.mazdas247.com/forum/showthread.php?123756391-VICS-solenoid-broken-what-does-that-mean
No the noise i had before was a sure fire rod knock a loud mid pitched thump thump thump at idle and all revs. it was pretty clear what that was but this noise was a rattle at a certain rom range did not sound like a bearing to me but i guess it was.. as far as y it happened only thing i can guess is po tried to repair bearings once before because the main bearing support plate was broken (they didnt know bout the 2 hidden bolts) and jb welded together. i replaced that plate when i did the rebuild and all bearing had scorings but the mains didnt seem to have damaged the caps or block but now i think it did and the po threw in new bearings which wore out n started knocking then he sold it to me. and i went by he bearing in it and didnt inspect the main caps for ovaling or the block for damage cuz it still had those bearings in tactSo you're thinking the noise is caused by the crank wobbling around in that spot? Maybe the bearing spun which caused it to rattle when not under load. Of course that doesn't tell us why it happened in the first place.
This is the engine noise you had before the rebuild, too?
