Guest nevsupra Posted May 17, 2016 Share Posted May 17, 2016 I'm glad to be a member, the supra's are great cars but there fairly complex and when things aren't as they should be it's better to have many minds on the matter and to rely on other owners experience. My 2JZ N/A has the dreaded high idle syndrome, I'm sure you all know it, or will know it at some time if you own a supra. At the moment I've disconnected the ICV and reverted to a fixed idle. Everything tests OK, however just during the start of the cold weather the idle sometimes has gone as high as 1800. Anyway I'll be glad of any suggestions you may offer to the cause. Best Wishes Nev Link to comment Share on other sites More sharing options...
gordy.r Posted May 17, 2016 Share Posted May 17, 2016 Hello and welcome to the forum, nice introduction but unfortunately I am not able to assist you as I am about as technical as a sausage. Someone will be along soon hopefully to point you in the right direction. Link to comment Share on other sites More sharing options...
stevie_b Posted May 17, 2016 Share Posted May 17, 2016 Hello and welcome. NAs have a high idle when they're cold. 2000rpm, even 2200rpm is not unusual. Within a few seconds though, the idle should drop in stages. Link to comment Share on other sites More sharing options...
Scooter Posted May 17, 2016 Share Posted May 17, 2016 Hello and welcome. NAs have a high idle when they're cold. 2000rpm, even 2200rpm is not unusual. Within a few seconds though, the idle should drop in stages. yeah that, just leave it one time idling from cold and check it drops in stages and settles. It's been a while now since I had an NA but I think that it you drive off and then your route means you don't have cause to stop for some time, the idle will still be high when you finally do, but then if given a chance will step down to a more normal idle rpm, and stay there thereafter. Link to comment Share on other sites More sharing options...
Annabella Posted May 17, 2016 Share Posted May 17, 2016 Hello and welcome. NAs have a high idle when they're cold. 2000rpm, even 2200rpm is not unusual. Within a few seconds though, the idle should drop in stages. Had me worried until I read that the high idle was normal, just lots of 'automatic choke' until it warms up, and as you say soon slows after maybe a minute or so when its warmed. Link to comment Share on other sites More sharing options...
MATT RR Posted May 17, 2016 Share Posted May 17, 2016 to the club Link to comment Share on other sites More sharing options...
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