2000 Hyundai Atos

scan for codes and check fuel pressure with a gauge first, auto parts rent gauges in u.s.

So you think it will be a fuel pressure here?
What tips do for the throttle that it causes a cold start stalling too!
http://www.aliexpress.com/store/product/IDLE-AIR-CONTROL-VALVE-35150-02600-for-HYUNDAI-ATOS-PICANTO/110829_537253589.html
This neem possible?

try cleaning the throttle plate on both sides and iac hole with choke cleaner I thin you regoing in the wrong direction with the other stuff and do the stuff in first reply or you won't know what the problem is you will be just guessing and WASTING OUR TIME

Thank you a lot of good advice.
I try to clean if it does not work, then you have come to the pressure measurement!
I very much such a small 2.5 liter engine, especially in the summer.

Greetings!
I went so far as to throttle also managed to get 2 pieces.
One used in the factory, another new aftermarket.
How is this to be calibrated to the car?
Unfortunately we do not recognize, it does not change anything!
I tried to uninstall battery terminal for an hour and then run at idle for 10 minutes.

first thing is I don't know what you bought by pieces and most of ht time you nstall and it will start to work and not need calibration. unless you let me know what it is that you put in I have no explanation and if your engine light is on you need a scanner to erase it not disconnect the battery

Thanks for the quick response.
Unfortunately, this is no fault light.
But it may be worth a plugged code reader.

I can offer no other suggestions

I would like to inquire.
Hyundai Atos 2000 vintage.
What affects mainly the fuel pressure?

a bad fuel pump or clogged filter, mainly the pump though.