Hyundai XG 350 The mid-sized luxury model

XG350 throttle issue

  #1  
Old 02-13-2012, 04:45 PM
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Default XG350 throttle issue

I have an xg350 that is throwing error codes of plenty. the only one that points me in the right direction is one that tells me there is a voltage problem with the throttle position actuator motor. I have changed the TPS on the throttle body as well as the throttle actuator on the left side of the engine compartment. In addition i have tested the harness under the trouble shooting guide and every thing rang out correctly under the hood, cleaned out the throttle body and replaced the bearings in the actuator motor(they were very sticky) checked and rechecked for proper assembly and all is correct. It seems that i have an etc or pcm issue or maybe harness?? I was hoping to drum up a little wisdom on this subject before i go ripping apart the dash to get to the ETC PCM and harness for troubleshooting. The vehicle is stuck in limp mode and idles very rough no response from throttle. Thanks for reading
 
  #2  
Old 02-28-2012, 10:17 AM
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Join Date: Feb 2011
Location: Central Florida
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We may be sharing ETC troubles. Is your throttle plate responding to throttle position changes? I've got a 2002 XG350 that now and then dies, just as if it had run out of gas. Codes P1191/P1193 are thrown during the failure, but not recorded, since (I guess) they're deemed transient. During the failure, the throttle plate appears to be responding to throttle demand, but there's (apparently) insufficient fuel to make any difference in engine output. Turning the ignition off and on allows restart and normal operation resumes. I've been suspecting the fuel pump, but the shop is now chasing after the throttle body, which I guess you know is a $1200 part, but it looks like you've already addressed every component on the throttle body. I'd be interested in how hard it was to replace the actuator motor bearings.
 
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