Revs?

JB50

Member
:
2003 mazdaspeed
MSP normal (I GUESS) stumbling idle, now if i can bring the car to a stop below 1000 rpms then it stumbles below 1000 to about 200. 30% of the time it actually dies. now if im not under 1000 the car will rise and drop 1500 to 2000 rapidly ???????????????????????????????????????????????????????????
 
Got spare cleaned it (not very dirty) and replaced it also cleaned my stock one (not dirty) and still same
 
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