help my 1jz is hunting in morining

[shoosh09]

hi peoples

i got problem with my supra 1jz when i start it in the morining it hunts it go to 2500rpm then 1400rpm and if i drive it for about half hr it stop go back to normale i post this becoz i still learning about cars and turbos. can someone please help me

thanks matt

[TJ]

idle control valve dead or dirty.

[mys1]

Somethigns upsetting your cold start setting. Im assueming stock ECU?

[beatle]

As TJ said, clean your ISCV (on the back of the intake manifold, engine side)

[shoosh09]

ok thank for that i'll try it on the weekend