Revs To Low Then To High Need Help

[Keatesy]

hi all i hope you can help me my is200 starts up fine when cold it does the usual revs 1100ish till it warms up then they drop to 500ish and is fine driving for 5 minutes then when at lights/juntion the revs will drop right down and cut out ill start the car again and after another 10 mins the TRC will start flashing on the dash and the revs will sit at 2000ish when idleing(its 1 extreme to the other lol) has anybody had this problem before or heard of it any help/advice is much appreciated thanks

[ChrisIS200SportTTE]

Hi and welcome :)

I just directed you to the Facebook IS200 page. You might get some more help there. :)