1993 Acura Legend "car runs rough rpm surges" Questions

...rpm jumps up and down. What worng? Here is the common cause of surges (idle speed goes up and down), stalls at stops, slow idle speed, erratic idle speed, rough idle and engine hesitation (and other ...

...rough at iddler and surges,and drop to about 500 rpm,but if I turn on the air conditioned rpm return to normal, and the engine run smoth any sugestions. I would change the fuel filter and see if that ...

...Runs rough...like misfiring? or vibrating excessively at about 1500, and again about 3000 rpm? If it's the latter, chances are your engine's balance shaft is not timed correctly. This causes a heavy ...

...runs okay above (2k rpm). Have replaced spark plugs, throttle body, and walnut blasted valves. I'm at a loss??? Initially after the spark plug replacement the car ran okay for a week or so. Then the ...

car surges and rpm drop but pick back up. If I accel hard it runs fine. Also at idle at times it varies 200 rpm like a I have 2002 audit quattro TT with 180k miles. When I do a normal acceleration the

...rough @ low rpm, and doesn't want to idle. Chk Engine light is flashing 32. what do i need to replace, the EGR valve, the solenoid, or the temperature switch? Am I on the rite track? You can remove ...

runs rich I have a '93 D21 ka2.4 I jared the truck while off roading and truck started running rough with bad miss fire thru out rpm range, surging at idle, very low idle, and running very rich. Idles

...if you keep the rpm`s up but at idle wants to surge and stall. any help on this. thanks Bill wont stay running after it warms up not overheating runs rough is it carb, or efi ? and what size

...car still runs and quits the same way...help...no other codes on computer... try replacing the fuel regulator,that would make it get too much fuel and the code for o2 sensor will come on saying too ...

...to what it used to be. it used to idle at a nice low, steady rpm. thank you for your help have the carb re built Look and see if any vacuum lines have slipped ...