Hyundai Repair: hyundai accent 2000 manual, hyundai accent 2000, hyundai accent

Question
I have read about the last post someone made about their hyundai...and my car is acting up the same thing...we have changed the injectors and still the car is not running.... our car came without a/c and so do you think it might have been the piston and also the header pipe is turns red hot when the engine is turn on...

Answer
If your exhaust turns red hot, it's typically a sign of unburned fuel in the exhaust.  

I don't know which previous post you're referring to, so I'll need you to list your car's symptoms in full so I know what is happening.

Is your check engine lamp coming on or flashing?  If it's flashing, you have a misfire and should not drive the car.  If it's just on, at least take the car to have the codes read.

I'm also a little confused because you say the car is not running, and then later you say the exhaust is red hot when the car is running.  Without more information, I'm limited to low-percentage guesses.  At this point, I'm also very concerned that I don't fully understand your problem.