Honda Civic / Del Sol (1992 - 2000) EG/EH/EJ/EK/EM1 Discussion

Closed loop and O2 sensor?

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Old Jul 22, 2003 | 09:53 PM
  #1  
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Default Closed loop and O2 sensor?

If I disable closed loop with something like Hondata, do I still need the primary O2 sensor plugged in? Thanks.
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Old Jul 22, 2003 | 09:58 PM
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From: nocow
Default Re: Closed loop and O2 sensor? (red_sir)

if you can disable closed loop and run in open loop then you dont need any o2 sensors. because o2 only come into play when your in closed loop.
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Old Jul 22, 2003 | 10:31 PM
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Default Re: Closed loop and O2 sensor? (94hondaLS)

I see. So I won't throw a code and go into limp mode if I take out the primary O2 and put a wideband O2 in its place? Thanks.
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Old Jul 23, 2003 | 01:30 AM
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From: nocow
Default Re: Closed loop and O2 sensor? (red_sir)

I dont know what the difference is between the wideband and a regular O2 is but if you take out your O2 you cant go into closed loop without a signal. it will put you in limp in unless the hondata does some kind of miracle.
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Old Jul 23, 2003 | 01:39 AM
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Default Re: Closed loop and O2 sensor? (red_sir)

why not just have both? I'm sure its better then just the WB.
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Old Jul 23, 2003 | 01:53 AM
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Default Re: Closed loop and O2 sensor? (94hondaLS)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 94hondaLS &raquo;</TD></TR><TR><TD CLASS="quote">I dont know what the difference is between the wideband and a regular O2 is but if you take out your O2 you cant go into closed loop without a signal. it will put you in limp in unless the hondata does some kind of miracle.</TD></TR></TABLE>

I don't want it to go into closed loop. Hondata has an option to disable closed loop. But I don't know if I still need the O2 sensor plugged in after disabling closed loop. Oh well, I guess I'll just have to try and see.
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Old Jul 23, 2003 | 01:54 AM
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Default Re: Closed loop and O2 sensor? (Ivan)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Ivan &raquo;</TD></TR><TR><TD CLASS="quote">why not just have both? I'm sure its better then just the WB.</TD></TR></TABLE>

Adding another bung for a wideband O2 = more work.

I just want to tune with the wideband O2 in place of the primary O2, and then plug back in the primary O2 after.
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Old Jul 23, 2003 | 02:14 AM
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Default Re: Closed loop and O2 sensor? (red_sir)

well no matter what you'll have to tune with the WB. I'm just sating why eliminate the primary. put them both in and be done with it
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