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well i currently replaced the spark plugs, wires, cap and rotor and when i turn on the car it smells lean and idle is a little higher now(about 1100rpm). before i did the tune up it usually smells very rich whenever i turn on the car. is this normal? btw i just used some ZMAX the very same day of the tune up....
^^^ my thoughts exactly. especially the lean part. if running rich, u can smell gas, understandable. the opposite isn't always true...no smell could also mean u are running correctly, no?
ive been thinking about it for a few hours, and the best way I can describe the lean exhaust smell (been dealing with carbureated rotaries for a while) is it's like burned propane from a gas stove. If you really are lean, then you can tell by the temp of the cats (if you have them or if you dont) you really need a wideband and a dyno. GL!