Cold Start Idle Speed
Howdy !! I'm new to this group after having just bought a gem of a "90
Civic Si. A great little car with a few odds and ends to putter away at; one of which is getting the proper cold start idle speed. It's an Si model with 1.6L 16 valve engine. On any morning on cold start (minus temps right now), the idle speed is only about 1000 RPM. This seems way too low, especially when it's -20C in the morning. After the engine is warmed up from driving, the engine assumes a normal idle speed of about 750-800 RPM. Funny thing is though, after only about 5 minutes of driving when the engine isn't fully warmed up, the cold fast idle increases to about 1500 RPM (normally as engine warms up, idle drops). My question is how is the fast idle adjusted ? My Haynes manual shows just setting throttle cable tension and idle speed, but nothing about fast idle. I'm an auto technician myself, and always refer to manuals on something new or different, but I'm out of luck with this manual. Would any of the Honda techs lend me a hand ?? I'm kinda leaning towards the EACV ?? Thanks !! D.Mills Licensed Automotive Technician. |
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