James123456 Posted November 5, 2005 Share Posted November 5, 2005 I have 93 GS300. the idle speed is around 900rmp, is it too high? Anybody knows how to adjust it down to 750? Thanks!!! Quote Link to comment Share on other sites More sharing options...
TurboGS300 Posted November 5, 2005 Share Posted November 5, 2005 You have to adjust the TPS for the idle. Quote Link to comment Share on other sites More sharing options...
dcfish Posted November 5, 2005 Share Posted November 5, 2005 You have to adjust the TPS for the idle. ← What is the proper way to adjust the TPS? Quote Link to comment Share on other sites More sharing options...
SKperformance Posted November 5, 2005 Share Posted November 5, 2005 As far as i know you never adjust a tps unless you are replacing it as the idle is completely ECC controlled.If it is not where it should be then you have a problem, that needs to be fixed . In olden days of carbs before rampant use of fuel injection you would adjust the idle higher as a band aid to cover the problem. If the car runs fine then do not worry about adjusting the idle the computer can handle it easily enough. Quote Link to comment Share on other sites More sharing options...
GuyTelefunken Posted November 5, 2005 Share Posted November 5, 2005 Adjustments are in the following .pdf. Note the last page of the .pdf contains the wire colors for a 1995 GS300. They should be similar to the 1993 but there are no guarantees. Step #2 sets position of the idle switch. If the continuity/no continuity readings are correct before adjustment, the cause of your slightly higher idle speed is most likely elsewhere. TPS_Adjustments.pdf Quote Link to comment Share on other sites More sharing options...
TurboGS300 Posted November 5, 2005 Share Posted November 5, 2005 As far as i know you never adjust a tps unless you are replacing it as the idle is completely ECC controlled.If it is not where it should be then you have a problem, that needs to be fixed . In olden days of carbs before rampant use of fuel injection you would adjust the idle higher as a band aid to cover the problem.If the car runs fine then do not worry about adjusting the idle the computer can handle it easily enough. ← True, however mine was idling low as the TPS screws were slightly loose. I never touched the srews before, nor did anyoine else that I know of, so this could be his problem and it doesn't hurt to check it. <_< Quote Link to comment Share on other sites More sharing options...
James123456 Posted November 6, 2005 Author Share Posted November 6, 2005 Thanks, GuyTelefunken I'll try! Quote Link to comment Share on other sites More sharing options...
James123456 Posted November 8, 2005 Author Share Posted November 8, 2005 I got this manu from somebody, I gona share with you guys. basicinspection.pdf Quote Link to comment Share on other sites More sharing options...
James123456 Posted November 8, 2005 Author Share Posted November 8, 2005 Another one Quote Link to comment Share on other sites More sharing options...
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