Idle, and mix adjust
08-06-01, 03:10 AM
#1
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Idle, and mix adjust
How should I adjust the Idle screw? The car seems to run crappy (bouncy idle). Also, the idle mix screw is set all the way to rich, I dont know what it should be. Anyone wanna tell me how to adjust the TPS? 
08-06-01, 05:58 AM
#2
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I would like to help you tony, but it seems that my S-AFC is controlling my Idle. When I turn the Idle adjust screw there is no response. As soon as I set some negative or positive numbers on my S-AFC you can here the engine rev up or down and you can see the Haltuner A/F guage react accordingly. I have more control and a smooth Idle on demand.
08-06-01, 11:13 PM
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400 bucks at most dealers or whatever...try th erx7 store on the forum..i believe it is at the top of the forum page on every page. I think he seel them about 100 bucks less.
later
later
08-06-01, 11:48 PM
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Buying a s-afc in order to band-aid a bad idle... that's one of the biggest wastes of money I've ever heard..
Anything that the s-afc can do improve your idle, you can do yourself using the correct procedure and the idle mixture screw..
In fact, if you need a s-afc to get proper idle, then your car is screwed with to begin with...
idle bounce is usually related to the TPS being misadjusted.. there are several web pages that will show you how to adjust it properly .. the easiest way is shown on Ted's site http://www.k2rd.com/FC3S/HOWTO/TPS/tps.html
once you have the TPS set, then adjust your idle mixture correctly .. jumper the initial set connector with a peice of wire.. adjust the screw on the BAC valve to give you 750 rpm, then adjust your idle mixture screw to give you the highest idle.. use the BAC to adjust the idle back to 750rpm.. disconnect the jumper.. your idle should bounce a few seconds then come down to a normal idle ...
If you still can't get idle set correctly using this method, then there is something else that is out to lunch with your motor.. vac leak perhaps, improper throttle stop screw setting etc...
Anything that the s-afc can do improve your idle, you can do yourself using the correct procedure and the idle mixture screw..
In fact, if you need a s-afc to get proper idle, then your car is screwed with to begin with...
idle bounce is usually related to the TPS being misadjusted.. there are several web pages that will show you how to adjust it properly .. the easiest way is shown on Ted's site http://www.k2rd.com/FC3S/HOWTO/TPS/tps.html
once you have the TPS set, then adjust your idle mixture correctly .. jumper the initial set connector with a peice of wire.. adjust the screw on the BAC valve to give you 750 rpm, then adjust your idle mixture screw to give you the highest idle.. use the BAC to adjust the idle back to 750rpm.. disconnect the jumper.. your idle should bounce a few seconds then come down to a normal idle ...
If you still can't get idle set correctly using this method, then there is something else that is out to lunch with your motor.. vac leak perhaps, improper throttle stop screw setting etc...
08-07-01, 02:47 PM
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ok i'm having trouble with my idle so i'll ask some questions here too
in the Haynes manual that I have... it doesn't mention the mixture screw...
where is it? i can't find it
and where is the initial set connector?
thx
in the Haynes manual that I have... it doesn't mention the mixture screw...
where is it? i can't find it
and where is the initial set connector?
thx
08-07-01, 05:08 PM
#7
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This is great info, im going to go put it to use.
EDIT: Great info meaning the write up on Teds page.
EDIT: Great info meaning the write up on Teds page.
Last edited by TonyTurboII; 08-07-01 at 05:28 PM.
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08-07-01, 05:15 PM
#8
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Originally posted by Bean
ok i'm having trouble with my idle so i'll ask some questions here too
in the Haynes manual that I have... it doesn't mention the mixture screw...
where is it? i can't find it
and where is the initial set connector?
thx
ok i'm having trouble with my idle so i'll ask some questions here too
in the Haynes manual that I have... it doesn't mention the mixture screw...
where is it? i can't find it
and where is the initial set connector?
thx
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