My '94 civic hatchback (1200cc) idling is fine when i start the car. but when driving, sometimes the idling is too low which makes the engine shake. this is trigerred when i switch on the headlights. when i switch the aircon and lights, the shaking gets worse. but when i switch off the headlights, idling is ok even with aircon. sometimes, i feel idling is high when i switch on the aircon. my civic EG does not have RPM guage. hope you can help me.
Dude its normal for first start or cold start that the idle is ok but it must high than normal... its normal because the engine is warming up it self... when it gets warm, the idle speed will return normal idle... your engine is 1200cc, it has not much HP for a great load... and i know its a carburatored engine and its an old engine, your head lyt and a/c fan and aux fan and all the electrical system on your car, uses the HP of you engine and its a lot of load to the alternator driven by the engine to generate an electricity they need and thats why the engine rpm speed lowering down to dead and its shake. thats why when you use your lyts or all electrical, you engine is weakening... the best remede is adjusting you idle speed... its located behind the carburator.. its a small black knob.. just make a twist each eighter way and you'll find out if your idle rpm speed ts incresing or decresing.. just increase it and try opening your lyts and other electrical, if its still shaking then adjust it a little more
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Car has no power or torque, worse when aircon is running
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