peter richards Posted May 8, 2011 Share Posted May 8, 2011 mates got a celica ST202 and its reving up and down on idle , any help appreciated in helping him out peter Link to comment Share on other sites More sharing options...
vertex Posted May 10, 2011 Share Posted May 10, 2011 tell him to remove his foot from accelerator? seriously though, tps is the first thing that springs to mind. how bad is the reving? what does it go up to? has he changed anything recently? does it happen when its hot only? cold only? need more info.. Link to comment Share on other sites More sharing options...
Konrad Posted May 10, 2011 Share Posted May 10, 2011 MAF might need cleaning as it is another reason for revs going up and down on idle. Link to comment Share on other sites More sharing options...
Guest wantthatone Posted May 10, 2011 Share Posted May 10, 2011 ICV "idle control valve" clean this first Link to comment Share on other sites More sharing options...
ozz Posted May 10, 2011 Share Posted May 10, 2011 I was thinking ICV but doesn't that only cause revs to 'stick' and not drop, rather than cause revs to go up? Link to comment Share on other sites More sharing options...
peter richards Posted May 10, 2011 Author Share Posted May 10, 2011 ok thanks ill pass on the info Link to comment Share on other sites More sharing options...
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