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What's wrong with my 1993 mazda 626?

idles ruffly, hestates when you step on the gas.had a tuneup a year ago.
RAYMOND, March 2010
sounds like an air leak on intake manifold , when its idling rough try squirting wd 40 around the inlet manifold and its pipes see if idle smoothes out , might find your air leak .

thurrock handyman, March 2010
link Click here to see other fixes for Mazda 626.