CLARKAA Posted August 7, 2007 Share Posted August 7, 2007 I have a 2000 Lexus GS400 with 84k and i recently noticed it wasn't as fast as it was and hesitates sometimes while im accelerating. Then my check engine light came on and so did my (TSC)Traction control. The diagonostic gave me check engine code P0121 which is TPS/PEDAL POSITION SENSOR A CKT RANGE PERFORMANCE. Anybody have this problem before??! Quote Link to comment Share on other sites More sharing options...
CarbonGS Posted August 7, 2007 Share Posted August 7, 2007 it is more common than you think. i have not had it myself but i've known a handfull of people who have had to replace theirs. from what i hear it is very easy. Quote Link to comment Share on other sites More sharing options...
topichka Posted August 13, 2007 Share Posted August 13, 2007 I had a similar problem although my car's check engine light never came on. My car would hesitate sometimes while driving, almost like I took my foot off the accelerator pedal but I didn't--drove me nuts. I replaced the pedal assemply--see thread below. It fixed my problem and sounds like it might be yours too. Good luck. http://www.clublexus.com/forums/showthread...3516&page=4 Quote Link to comment Share on other sites More sharing options...
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