i am going mad with my gd1 l13a1 the car has 180000km i have cleaned and adjust valves changed 8 spark plugs with iridium ngk changed all rear coil plugs with ngk ones and i have changed the egr but my car when it is hot and i press the gas in the range of 2000 to 3000 it hesitates a lot after that rpm it goes well.and i have seen that when it hesitates the lights in the center console they make a pulse lighting.any help it will be helpful

 

I had this issue too, but it was the Ignition Coils that were the big influence on it. 137k miles on it and those were the stock ones I replaced. Have you changed the injectors yet? That's next on my list bc there is still the slightest bit of stumble sometimes. Also might want to check its breathing and make sure its not obstructed or anything like that.