my 1994 1.5 sohc non vtec civic lsi idles at 250-350 and feels as if it going to stop any sec. i herd u can adjust the idle adjsut screw on the throttle body. but i cant find it as my car has sum diffrent sort of intake it's a black box instaed of a pipe like the vtecs have. i have attached a pic. could any help me find this screw please.

thanks

 

here are the pics.

 

If you are reading your stock tach, you can't read any lower than 500 rpms.



edit: Depending on the weather, mine sometimes also idles close to 500. It has never stalled, and I don't think it is really a big deal.