Sam1968 Posted November 2, 2018 Share Posted November 2, 2018 I need help to resolve this on going issue , everytime i start my legacy (96 2.5 Eng) RPM goes up to 4000 and slowly goes down below 1000. how can i adjust this issue???? Quote Link to comment Share on other sites More sharing options...
montana tom Posted November 2, 2018 Share Posted November 2, 2018 Iac valve , clean or replace. Quote Link to comment Share on other sites More sharing options...
Sam1968 Posted November 2, 2018 Author Share Posted November 2, 2018 Thanks for your response, if i replace the IAC will the ECU recognise it and adjust the valve to its regular RPM. Quote Link to comment Share on other sites More sharing options...
montana tom Posted November 2, 2018 Share Posted November 2, 2018 Yes,it will but try a though cleaning first. It may not be your problem. Does the car have any codes showing or pending? What ever you do do not try to adjust anything, it will only make it worse. R&R only. Quote Link to comment Share on other sites More sharing options...
1 Lucky Texan Posted November 2, 2018 Share Posted November 2, 2018 first start - keep your foot off the gas pedal. If there's a 'zero' position being recorded, it should be accurate that way. Quote Link to comment Share on other sites More sharing options...
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