why does my A/F ratio bounce so much at idle?

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Old Oct 19, 2004 | 01:48 PM
  #1  
ATS*Mark's Avatar
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From: Norcal
Default why does my A/F ratio bounce so much at idle?

my part trottle is great , wot is perfect , but idle , sometimes it will drop as low as 11.2 and as high as 18.5 , i dont understand why it bounces around so much , is this normal?
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Old Oct 19, 2004 | 02:13 PM
  #2  
RyanEJ8's Avatar
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From: Margaritaville
Default Re: why does my A/F ratio bounce so much at idle? (Hella_JDM)

If the engine is trying to warm up I would expect it to bounce around some.
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Old Oct 19, 2004 | 04:25 PM
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Default Re: why does my A/F ratio bounce so much at idle? (RyanCivic2000)

wideband? no
narrowband/autometer gauge - yes.
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Old Oct 19, 2004 | 04:27 PM
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Freemantle's Avatar
 
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From: Vero Beach, Florida, USA
Default Re: why does my A/F ratio bounce so much at idle? (pissedoffsol)

My plx jumped a bit, but not ever more than a point.
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Old Oct 19, 2004 | 04:34 PM
  #5  
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From: Norcal
Default Re: why does my A/F ratio bounce so much at idle? (Freemantle)

even on the wideband it jumps..... but on my apexi it desplays pretty close to my realtime a/f and it jumps a shitload , i dont go by that to tune but it just seems wierd.
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Old Oct 19, 2004 | 05:39 PM
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From: ME
Default Re: why does my A/F ratio bounce so much at idle? (Hella_JDM)

is this open feedback loop?
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Old Oct 19, 2004 | 05:48 PM
  #7  
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From: Norcal
Default Re: why does my A/F ratio bounce so much at idle? (Bailhatch)

i asume so...i dont have close loop disabled but that is only on cold start right?
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