Silece2k6 Posted January 15, 2016 Share Posted January 15, 2016 Hi. A friend bought a 97 Facelift Supra with 2JZGE and V161. At Cold Start the Car revs to 2.200rpm and goes down to 2.000 for a long time. Is this normal? The Car and engine are full Stock and has 120tkm on the clock Link to comment Share on other sites More sharing options...
Josh42 Posted January 15, 2016 Share Posted January 15, 2016 Check for vacuum leaks on the breather system for the cams/throttle body/inlet. Link to comment Share on other sites More sharing options...
TuneR Posted January 15, 2016 Share Posted January 15, 2016 ^^^This. Also clean the TB, not sure if its vvti or not. Clean the IACV if not. Link to comment Share on other sites More sharing options...
Scooter Posted January 15, 2016 Share Posted January 15, 2016 From memory they are always fairly high 1800rpm ish. If you leave it idling you should see it step down every 20-30 seconds or so as it warms up......what is it's hot idle? Link to comment Share on other sites More sharing options...
Mike2JZ Posted January 15, 2016 Share Posted January 15, 2016 NA's have a high cold start idle. Takes roughly 5 minutes for it to settle back down to 900-1000rpm. Also, if you have your headlights on this will increase the revs slightly at first. Whilst the cold start is normal, some thing you can check quickly to make sure you aren't idleing higher then necissary: - Check for vaccum leaks, any leaks causes revs to raise to compensate due to MAP sensor. (assuming yours is a jap import) - Ignition timing that is advanced past the factory 10 BDTC will also cause revs to be higher Link to comment Share on other sites More sharing options...
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