Mk1Daniel Posted December 15, 2011 Share Posted December 15, 2011 On RB20DET Starts and idles at 2000rpm, after it warms for a bit it goes down to 1000rpm, then 2000rpm when its been running for a while (driving etc). Quote Link to comment Share on other sites More sharing options...
Seedy Al Posted December 15, 2011 Share Posted December 15, 2011 could be stepper motor or a vacumn leak maybe Quote Link to comment Share on other sites More sharing options...
QCADTA Posted December 16, 2011 Share Posted December 16, 2011 whip off the aac plug after its warmed up and see if this fixes it, my ca18det was doin this too and it turned out this was the problem so got another one. Quote Link to comment Share on other sites More sharing options...
SloNLo Posted December 17, 2011 Share Posted December 17, 2011 aac plug? Quote Link to comment Share on other sites More sharing options...
DavidTheCreator Posted December 26, 2011 Share Posted December 26, 2011 Auxilary air control Quote Link to comment Share on other sites More sharing options...
d.p.n.s Posted December 26, 2011 Share Posted December 26, 2011 yeah its on your intake plenum my ca18 was doin the same as Glens .i pulled mine apart and gve it a clean as they get full of black shit. also when you adjust it the plug should be disconected as if you dont you can addjust it all you want and as soon as you turn it off it will go back to where it was. but try cleaning it and the plug befor you replace it Quote Link to comment Share on other sites More sharing options...
Stacov Posted December 27, 2011 Share Posted December 27, 2011 you also might need to readjust ur t.p.s sensor or replace it will need a mutli meter just trying to think of the voltage maybe. Try google should be on some skyline forums if i remember it ill reply back lol Quote Link to comment Share on other sites More sharing options...
Mk1Daniel Posted December 28, 2011 Author Share Posted December 28, 2011 i have given the AAC a clean, i tried to adjust it, may have failed at that... Quote Link to comment Share on other sites More sharing options...
Escorto. Posted December 28, 2011 Share Posted December 28, 2011 It may be the IAC also. probably more likely actually. Is it all factory? still got std j pipe. Quote Link to comment Share on other sites More sharing options...
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