2004 XG350 Accelerator Problems
 

Yesterday my wife's car, 39.6Kmiles, was having issues with the accelerator. She was driving on the highway and the car appeared to die. The engine was still running, but when she pressed down on the accelerator there was nothing, the engine would not even rev up. She coasted off of the highway and when stopped the car's check engine light came on and the car died. About 2 minutes later the car started back up, check engine light off, and she was able to drive it another couple of miles until it happened again.

I took the car to a shop (not Hyundai dealer-it's out of warranty) who was unable to locate a problem or duplicate the issue. My wife picked up the car and drove it home today without problems. I did some research and found that some owners have had similar issues and ended up replacing some sort of sensor: accelerator position sensor, accelerator sensor, accelerator relay or something of the sort. I called Hyundai Consumer Relations to explain the issue and he told me he could find nothing showing a re-occurring issue.

Does anyone know what the problem is or what I need to replace?

APP sensor (acell pedal position sensor)... scan and codes as displayed please ..

Located at right strut tower, that thing with steel cable and wire connector attached to it

Its the Accelerator Position Sensor or the APS.

You can get it at the dealer for about $200 or you can try your luck at the junkyard. I got mine off the junkyard for $25 and it was off a 2001 XG300.

Good luck!