2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

How to adjust s-afc to run leaner at idle.

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Old Sep 8, 2004 | 09:34 PM
  #1  
Sacker90's Avatar
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From: Seymour, TN
How to adjust s-afc to run leaner at idle.

I haven't had my afc tuned yet, and its smoking alot at idle. I was wondering how to at least adjust that til i get it tuned. I just got a walbro fuel pump and 720cc secondaries if that info is needed. thanks
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Old Sep 8, 2004 | 09:52 PM
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jacobcartmill's Avatar
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From: Nashville, TN
umm well... go to the fuel map (for low throttle) and hit the down arrow when you're on 1000rpms... it'll be close enough if your idle is below 1000.

shouldnt be too complicated...
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Old Sep 8, 2004 | 09:56 PM
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neevosh's Avatar
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From: san jose, ca
Go to the low-throttle settings and adjust at the 1000RPM mark. You might also want to adjust it a bit at the the 2000RPM setting. A Walbro shouldn't cause your car to smoke at idle though. Unless you rewired it to run at a constant 12V.
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Old Sep 8, 2004 | 10:32 PM
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nice avatar
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Old Sep 8, 2004 | 10:41 PM
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just dont care.
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tanks
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Old Sep 8, 2004 | 11:27 PM
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Is that thing Turbo?
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there is also a idle fuel corection scre under the hood in front of the pasanger shock tower labeled l and r for lean an rich i found better results setting my safc to 0 correction at idle and adjusting that screw till i got the smoothest idle
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Old Sep 9, 2004 | 06:37 AM
  #7  
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ok I'll try that thanks
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Old Sep 9, 2004 | 04:28 PM
  #8  
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I am still smoking really really bad at idle. The s-afc didnt do the trick unless there is some other setting i have to make before that. It really started doin this about two days after i got my t04b hybrid put in if that has anythign to do with it
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Old Sep 9, 2004 | 04:28 PM
  #9  
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And there is also no idle fuel correction on a s5 just on a s4
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Old Sep 9, 2004 | 04:29 PM
  #10  
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From: Seymour, TN
I also have the walbro pump rewired for full power
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