I went over to autozone yesterday to get the CEL checked on the 2000 Tiburon I just got. Anyway, here are the codes: P1586, P0501, P0453, P0121, and the one saying my first o2 sensor is bad. P1586=Idle speed control-I think someone said it can be fixed by fixing some wiring because of the auto to manual swap. P0501=Speed sensor-I think it means I need to replace it. P0453=Evap. Pressure sensor-Also think I need to replace it. P0121=TPS Once again, Im guesing it needs to be replaced. I need help with this really bad. Any suggestions or anything would be great. Even if you can just tell me where these sensors are located maybe I could visit a junkyard. Thanks for anything you can do to help

 

I've got a TPS sensor I'll send for $20 shipped. I just got done checking it on my motor with the SAFC. Works fine.

 

Are you sure it's not a wiring/ECU problem? That's a LOT of sensors to go bad all at once. I think you need to get in there with a datalogger or even multimeter and try getting some readings on those sensors!

 

I could try that but Im not sure what to look for at all. I jsut got the car about a month ago and it had the CEL then

 

Alright so I fixed the speed sensor (I guess a wire came loose) I reset the codes by disconnecting battery adn took it back to autozone and only 2 codes are left. The tps, and the Evaporation pressure sensor. I already bought a tps but Im wondering what to do about the evap. pressure sensor. Should I just buy it from the dealer or what? And even though I fixed the speed sensor (at least the code is gone) the speedo still doesnt work. any suggestions? Thanks