Hey guys how you all going? I have a 94 Magna SE Wagon, but have a few problems im hoping to get answers to... after i start the car (cold start) its fine but when it warms up at idling temp if thats the right term to use the needle on the tacho will move up n down slightly then feel like its about to stall and in most cases it does.. goes to about 500RPM then then tries to stall... the only thing i can do to keep it going is VERY lightly touch the Accelerater to keep the revs up a bit.... only happens when its warmed up though... and secondly nothing major, but from a cold start it very rarely smokes from the exaust but for eg. when stopped at traffic light and i suddenly accelerate after the green, one puff of white smoke comes from the exaust, only one puff and this only happens on odd rare occasions... id appreciate any help... thanx guys....

might have a vacuume leak for the idle jumping.... as for the smoke not sure on that might be low on oil? or might have to much oil simple stuff screws everything up