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Subject: "Wideband confusion" Previous topic | Next topic
98dsmNTJul-04-07 10:03 AM
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#100706, "Wideband confusion"


          

Ok so i just installed my zeitronix zt-2 and ive been watching my readings and my afr is all over the place. from 9.6-21.0. its rediculous. My idle wont even stay steady, it varies from like 10-15. also when cruising, im running pretty rich and i dont know how to fix that. what could it be? could it be my injectors?

  

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Moderatorcs82685Jul-04-07 10:35 AM
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#100707, "RE: Wideband confusion"
In response to Reply # 0




          

Originally posted by 98dsmNT
Ok so i just installed my zeitronix zt-2 and ive been watching my readings and my afr is all over the place. from 9.6-21.0. its rediculous. My idle wont even stay steady, it varies from like 10-15. also when cruising, im running pretty rich and i dont know how to fix that. what could it be? could it be my injectors?


other mods? what constitutes "pretty rich" to you? You are probably seeing 21 when you let off the gas, that's normal. 9.6 is really rich.


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98dsmNTJul-04-07 01:16 PM
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#100709, "RE: Wideband confusion"
In response to Reply # 1


          

i have a walboro 255l fuel pump, braided fuel lines, sfmu, stock injectors, s16g 8psi, 1gbov, zeironix wideband.
yea i do see the 21 at let off but im talking as im cruising at like 2500-3000 rpm im seeing 9.6afr and really low numbers throughout.

  

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Moderatorcs82685Jul-04-07 04:35 PM
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#100712, "RE: Wideband confusion"
In response to Reply # 2




          

Originally posted by 98dsmNT
as im cruising at like 2500-3000 rpm im seeing 9.6afr and really low numbers throughout.


idle/static fuel pressures? I believe idle should be somewhere around 47-55 according to hahn. When you're crusing at part throttle maintaining your speed and not boosting you really shouldn't be at 9.6


I contributed to the Wiki!
EVO IX - just a really expensive boost gauge and a K&N air filter
96 Eclipse RS -awaiting registration and inspection
95 Eclipse GS - parts car
Mods/Profile - http://www.2gnt.com/index.php?d=cs82685

  

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Slo2gJul-04-07 06:06 PM
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#100719, "RE: Wideband confusion"
In response to Reply # 3


          

Originally posted by cs82685
Originally posted by 98dsmNT as im cruising at like 2500-3000 rpm im seeing 9.6afr and really low numbers throughout.
idle/static fuel pressures? I believe idle should be somewhere around 47-55 according to hahn. When you're crusing at part throttle maintaining your speed and not boosting you really shouldn't be at 9.6


+1, thats really rich for cruising.

  

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98dsmNTJul-06-07 11:12 AM
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#100740, "RE: Wideband confusion"
In response to Reply # 4


          

would a bad upstream o2 gone bad casue me to run so rich? i think that could be the problem, or maybe some of my injectors are stuck open?

  

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