kevin smith Posted January 22, 2017 Share Posted January 22, 2017 Hi i have had my NA auto serviced (everything done) but the tick over just will not settle, one minute it sits right and another time it drops lower. the only thing i have changed is i took off the second cat, and changed the ECU still (standard). any ideas. Thanks. Link to comment Share on other sites More sharing options...
Chris Wilson Posted January 22, 2017 Share Posted January 22, 2017 You need to probe the idle control solenoid with a a scope and see if it is receiving signals from the ECU. If it is and not responding you can try cleaning it, if not renew it. There are many other issues that can affect the idle stability though, but that's where i would start if nothing was visually amiss. Link to comment Share on other sites More sharing options...
evinX Posted January 22, 2017 Share Posted January 22, 2017 Throttle body? When its revving high. Hit the throttle body with the end of a screw driver. If it returns to normal. The shaft is worn. Link to comment Share on other sites More sharing options...
Scooter Posted January 22, 2017 Share Posted January 22, 2017 Did they do the plugs? There are a fair few vacuum pipes around the throttle body (that need to be ro ved to do the plugs) and one of these might have been left off. Link to comment Share on other sites More sharing options...
AndyJax Posted January 22, 2017 Share Posted January 22, 2017 I fitted one of those fandangled earthing kits which despite what some people say did actually steady the idle. Link to comment Share on other sites More sharing options...
SupraLEDrears Posted January 22, 2017 Share Posted January 22, 2017 Hi i have had my NA auto serviced (everything done) but the tick over just will not settle, one minute it sits right and another time it drops lower. the only thing i have changed is i took off the second cat, and changed the ECU still (standard). any ideas. Thanks. Does it happen all the time or is it intermittent? Link to comment Share on other sites More sharing options...
kevin smith Posted January 23, 2017 Author Share Posted January 23, 2017 Thanks it is intermittent, in gear it sits at about 8000rpm and then it will drop a bit ?7000 rpm and then it will rise to about 10000 rpm and so on, and if you pull away a bit quick there is a flat spot and then it's off you go. I am no mechanic so am fishing around in the dark. Yes the plugs were all changed so i will have a look to see if i can see if any vac pipes are off. Many thanks for all advice. Link to comment Share on other sites More sharing options...
Mike2JZ Posted January 23, 2017 Share Posted January 23, 2017 10000 rpm? Link to comment Share on other sites More sharing options...
kevin smith Posted January 23, 2017 Author Share Posted January 23, 2017 Hi i am not sure what this earthing kits is, any link would be appreciated. Link to comment Share on other sites More sharing options...
Chris Wilson Posted January 23, 2017 Share Posted January 23, 2017 Zero fatigue? Link to comment Share on other sites More sharing options...
kevin smith Posted January 24, 2017 Author Share Posted January 24, 2017 Sorry Chris ? Link to comment Share on other sites More sharing options...
scott.wild Posted January 24, 2017 Share Posted January 24, 2017 8 thousand rpm then 7 thousand rpm then 10 thousand Link to comment Share on other sites More sharing options...
Dave Posted January 24, 2017 Share Posted January 24, 2017 You could clean out the idle control valve . Link to comment Share on other sites More sharing options...
K22SUP Posted April 6, 2017 Share Posted April 6, 2017 Guys just to let yous know I had an erratic idle and I did the reset procedure for throttle body and it worked perfect now ! Link to comment Share on other sites More sharing options...
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