Hyundai Accent 98 problem

The alternator may not necessarily be charged but not enough to withstand all the systems in operation, that is to say that it loads but less than the account.

This RPM oscillation problem is most likely on the ISC or IAAC valve, this is the actuator in charge of regulating the minimum motor march, when it is dirty does not allow enough air to pass and not recover RPM when the air conditioning operates, so the tendency to go out.
And the air conditioning if it tends to subtract some force from the engine but when it is very notable the best would be to disassemble the compressor and check bearings and friction between the pistons and the electrical clutch, if any of these components tend to stop the compressor the engine loses more strength.
If the electrical circuit of your air conditioning is not the original and the air conditioning always this active also subtracts strength but only in the start.



luck!!

I did not notice that machine you brought, if it is 2.0 it is likely that the crankshaft sensor is sending an erroneous signal, you need to remove the front lid, to see some defect, it is very ovio, the sensor is one like an anchonn I would no longer turn on the engine, and if not the easiest give more air to the multiple of admission, or as Amfr comments, it begins with the revision of those valves if there is a way to clean them sometimes it works, luck!

Hello, if you have to check the cables and spark plugs, you can check it with a 14.2V tester. You have loading

If you stop why the alternator loads of less, at that time the battery or the alternator are able to endure the consumption at that time, that in that car I do not think they are very much, so that less it will endure instantly to endure a start