evening all....

could someone explain what happens during a cold start for a 93 WRX please?

just wondered whats invovled?
Idle speed control valve, warm up regulator, cold start injectors etc....

apart from curiosity i was wondering because mine sometimes judders a bit when starting from cold, as though the idle valve is sticking...

cheeeeeeeeeeers

Chris

 

anyone??

 

guess no-one knows?!



just wanna know if there is a idle speed control valve or similar that i can examine??!?
any help appreciated!

 

ICV is located to the right side of the throttle body,cold start is ecu controlled with temp input ... to be brief :-)