Hyundai: 2002 hyundia elantra gls, mass air flow sensor, throttle position sensor

Question
I have a 2002 Hyundia Elantra GLS.  The check engine light is on and my computer says it is an Idle System problem.  I replaced the throttle position sensor and reset the computer, but after a day, the check engine light came back on and the computer reads the sames Idle system message.  On start up, it tries to idle real high, about 3000 rpm, but only when cold.  It also idles higher than normal when warm; it should idle at about 600-700 rpm, but is idling at 1000 and has a very slight miss.  Do you know what might need to be done?

Answer
Hi Isaiah,

  It probably comes to show that your engine needs to be tuned up. Replace the Mass Air Flow Sensor as it may be failing, or the moisture in the wire connections changes the resistance fed to the computer. Try disassembling the wire connections and connecting them again.