I know there used to be either a thread or a link to a web site that described in detail how to adjust the idle on a FC. i remember it involving unplugging the TPS and adjusting things but i could really use the how-to again so I don't screw anything up.

thank you for your help and not flaming me.

TR

 

Found the how-to again on FC3Spro.com adj tps when warm to be in spec then adjust BAC valve to adjust idle.

 

hey can u post link to the site?? my idle is soooo funky. when i turn it on ion the mornings it goes to 1k then goes up and down to 700. and when im in N at a light it goes to 500 and act like its gonna shut off

 

bac valve? i have an original mazda rx7 technician's manual. if you have an n/a you adjust the idle with the screw directly on top of the throttle body untill its at about 750 rpm. then you need to adjust the tps. oh yeah when adjusting the idle with the screw you need to run a jumper wire to the green clip/port thats near the passenger strut tower by the air box.

 

If you can't get good idle by using Matt's instructions, above, you might have a serious vacuum leak....not just the hoses, but the UIM and LIM gaskets.

 

mine does that also what oil are u using?? I'm using 20/50 still and i think that may be the prob

 

im using 10w-40 is that good?? imma try wut u told me matt

 

nexpo8, that has nothing to do with adjusting the idle. Having no experience with automatic trannys i can't tell you for sure but I'm pretty sure that's tranny related.
And I second Matt.. Adjusting the idle screw and tps is fine and a lot quicker LoL.. Doesn't the BAC adjustment thing have to do with when it idles cold and then warms up and dies?

 

how do i adjust the tps? can some1 plz dumb it down to noobie level for me? im a quick learner with the right instructions

 

Diddo. My idle is funky about 2 and a half minutes after i start it up in the morning. It sputters up and down between 1100 and 1300 rpm then idles OK at 8-900. It's either the thermowax pellet or tps needs adjusting. Don't know a whole hell of a lot about doin that...need it dumbed down about also to put it bluntly.

 

i have a 5 speed.. and wut is tranny related??