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

obd2b 2nd o2 heater question.

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Old Sep 29, 2005 | 05:18 PM
  #1  
Slothy's Avatar
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From: New Glasgow, NS Canada
Default obd2b 2nd o2 heater question.

Ive searched and havent come up with a define answer, hoping someone here can help me. Car 99cx y7 hatch w/ obd2b y8 head (mini-me). The car works great, just want to loose the cel. There is no cat in the car. I have the 2nd o2 in a pipe on the firewall to trick the ecu into thinking theres cleaner air there. Im throwing a p0141 code: o2 sensor heater circuit malfunction (bank 1 sensor 2). I dont belive the sensor to be bad as it worked up untill i moved it. I guess the question is, can i add a resistor to the line so the ecu sees it as fine. I am planing to get a p28 w/ harness sometime, but would like to get a temp fix untill then.

Cliffs: need to bypass 2nd o2.

Emissions are not relivant here in Nova Scotia so that is not an issue for me.
any help would be great.
Thanks.
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Old Sep 29, 2005 | 05:25 PM
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From: San Marcos, TX
Default Re: obd2b 2nd o2 heater question. (Slothy)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Slothy &raquo;</TD></TR><TR><TD CLASS="quote">Ive searched and havent come up with a define answer, hoping someone here can help me. Car 99cx y7 hatch w/ obd2b y8 head (mini-me). The car works great, just want to loose the cel. There is no cat in the car. I have the 2nd o2 in a pipe on the firewall to trick the ecu into thinking theres cleaner air there. Im throwing a p0141 code: o2 sensor heater circuit malfunction (bank 1 sensor 2). I dont belive the sensor to be bad as it worked up untill i moved it. I guess the question is, can i add a resistor to the line so the ecu sees it as fine. I am planing to get a p28 w/ harness sometime, but would like to get a temp fix untill then.

Cliffs: need to bypass 2nd o2.


Emissions are not relivant here in Nova Scotia so that is not an issue for me.
any help would be great.
Thanks.</TD></TR></TABLE>

Why go through the trouble of wiring resistors and whatnot if you plan to get a P28?
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Old Sep 29, 2005 | 05:36 PM
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From: New Glasgow, NS Canada
Default Re: obd2b 2nd o2 heater question. (specv5150)

p28 wont be for a while...winter/ spring area. Looking for a fix untill then.
Thanks.
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Old Sep 29, 2005 | 05:55 PM
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From: TEAM LIGHTSPEED, Ca, USA
Default Re: obd2b 2nd o2 heater question. (Slothy)

why dont you buy an o2 sim to trick the ecu that sensor is there??
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Old Sep 29, 2005 | 05:58 PM
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Default Re: obd2b 2nd o2 heater question. (hatchi)

thats the problem, the ecu sees that the sensor is there and working, it just has a problem with the heater control. As far as im aware, the sim doesnt do anything for the heater only the o2.
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Old Sep 29, 2005 | 06:08 PM
  #6  
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From: TEAM LIGHTSPEED, Ca, USA
Default Re: obd2b 2nd o2 heater question. (Slothy)

did you try to hardwire the heater control ??
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Old Sep 29, 2005 | 06:10 PM
  #7  
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From: New Glasgow, NS Canada
Default Re: obd2b 2nd o2 heater question. (hatchi)

no, still using oem harness. Perhaps the wire is damaged to the ecu. Ill check the ecu @ A9 to see if theres continutity in the morning.
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Old Sep 29, 2005 | 06:13 PM
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Default Re: obd2b 2nd o2 heater question. (Slothy)

youll prob still get the code w/a p28, i was gettin, but i used uberdata to take of the cell, but until i got my a/f corrected it gave me crappy gas milage
oh does ne1 know if this has nething to do w/da heat, cause myn sucks
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Old Sep 29, 2005 | 06:45 PM
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Default Re: obd2b 2nd o2 heater question. (92eg6)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 92eg6 &raquo;</TD></TR><TR><TD CLASS="quote">youll prob still get the code w/a p28, i was gettin, but i used uberdata to take of the cell, but until i got my a/f corrected it gave me crappy gas milage
oh does ne1 know if this has nething to do w/da heat, cause myn sucks</TD></TR></TABLE>

you wont get a 2ndary O2 CEL with a P28
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Old Sep 30, 2005 | 02:15 AM
  #10  
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Default Re: obd2b 2nd o2 heater question. (specv5150)

23mpg city is why im looking into this.
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Old Sep 30, 2005 | 05:20 AM
  #11  
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From: Chaperoning, NY
Default Re: obd2b 2nd o2 heater question. (Slothy)

oh no, i think it was the primary one, 1st wen i had a p72 it was throwin secondary then wen io had a p28 after a little while it threw a primary, but i jus over looked it w/uberdata
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