PBL Posted June 21, 2004 Share Posted June 21, 2004 Help, throttle position sensor adjustment. I need some help to clarify the Lexus manual instructions for adjusting the two throttle position sensors. I am unclear on if I have to remove the throttle body or not to make the ohm check and adjustments as instructed. The reason why I am trying to check these units is I have been getting a lot of lag or hesitation starting out and I think it could be a simple adjustment on the throttle position or the unit itself might have a short in it. Any help would be greatly appreciated. :) Quote Link to comment Share on other sites More sharing options...
AWJ Posted June 21, 2004 Share Posted June 21, 2004 Just unplug the connectors and use your leads sensor side or plug side depending on what you are testing. Try cleaning the butterfly(ies) with carb cleaner. Those things get gummed up with crap from our gas. Even with the high octane stuff. But low grade makes it really nasty and should never be run. Quote Link to comment Share on other sites More sharing options...
PBL Posted June 21, 2004 Author Share Posted June 21, 2004 Excellent, thanks AWJ. I look forward to cleaning the throttle plate, hopefully that will stop the hesitation. There is also adjustments using a feeler gage and than adjusting the throttle sensor based on ohm readings, is that something as well that can be done with the whole unit installed? Thanks again for you help. :D Quote Link to comment Share on other sites More sharing options...
AWJ Posted June 21, 2004 Share Posted June 21, 2004 Yea, never done it though. As I understand, you loosen the botls for the sensor a little and wiggle it around while reading resistance and using your feeler gauge. Good luck. Quote Link to comment Share on other sites More sharing options...
PBL Posted June 21, 2004 Author Share Posted June 21, 2004 Thanks, I'll let you know after next weekend Quote Link to comment Share on other sites More sharing options...
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