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Subject: "Rear 02 resistor mod question" Previous topic | Next topic
Moderatorcs82685Jul-17-09 09:20 AM
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#126651, "Rear 02 resistor mod question"




          

Ok so I've come up with two different links from the search. They're both different so can someone tell me which one of these methods (or do both) work?

http://www.vfaq.com/mods/O2bypass.html

http://forums.2gnt.com/dcboard.php?az=show_topic&forum=5&topic_id=68262&mode=full


I've gotta get the damn car to pass inspection hopefully without putting any $$ into it.

Also need to fix my 'wig wag' Fucking tail lights are doing strange shit emoji


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
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Replies to this topic
RE: Rear 02 resistor mod question, AdministratorCODE4, Jul-17-09 10:19 AM, #1
RE: Rear 02 resistor mod question, Moderatorcs82685, Oct-03-09 07:55 PM, #2
      RE: Rear 02 resistor mod question, AdministratorCODE4, Oct-03-09 08:03 PM, #3
           RE: Rear 02 resistor mod question, VelocitaPaola, Oct-03-09 10:48 PM, #4
                RE: Rear 02 resistor mod question, Moderatorcs82685, Oct-03-09 11:25 PM, #5
                     RE: Rear 02 resistor mod question, ModeratorCorbin, Oct-04-09 05:47 PM, #6
                          RE: Rear 02 resistor mod question, Moderatorcs82685, Oct-06-09 04:57 AM, #7
                               RE: Rear 02 resistor mod question, AdministratorCODE4, Oct-06-09 06:58 AM, #8

AdministratorCODE4Jul-17-09 10:19 AM
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#126652, "RE: Rear 02 resistor mod question"
In response to Reply # 0




          

I mirrored this a long time ago as it worked for me when I was still OBD II compliant.

http://zero-signal.org/o2/O2bypass.html.htm

I built mine into an aluminum enclosure to aid in heat sinking ability.

---

2012 2500HD LML


  

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Moderatorcs82685Oct-03-09 07:55 PM
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#128087, "RE: Rear 02 resistor mod question"
In response to Reply # 1
Oct-03-09 07:57 PM by cs82685



          

bumping this up hoping one of the electric gurus will be able to help. Step 6 in the link above says

"You'll need a resistor of ~12 Ohms. This heater element flows around 1 Amp of current so you'll need resistors that can dissipate at least 12 Watts of current. Don't scrimp here as under-rated resistors could set your car on fire"

Local radioshack only has a 10 ohm resistor or a 100 ohm resistor. Is the 10 ohm ok or should I hunt around further for a 12 ohm?

edit: oh and wtf my sensor has two white wires and one black versus two black and one white per the diagram.


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EVO IX - just a really expensive boost gauge and a K&N air filter
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AdministratorCODE4Oct-03-09 08:03 PM
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#128088, "RE: Rear 02 resistor mod question"
In response to Reply # 2




          

I think the 10 Ohm might work, but bear in mind that with Ohm's law if resistance is lowered then current will increase. Make sure the wattage is rating is there. You can do some math and wire a couple resistors in parallel to get your target resistance too.

---

2012 2500HD LML


  

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VelocitaPaolaOct-03-09 10:48 PM
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#128091, "RE: Rear 02 resistor mod question"
In response to Reply # 3


          

A few people use three 50 ohm resistors in parallel, which yields an overall resistance of about 16.6 ohms. Each resistor only dissipates about 3.8W of power, though.

For what it's worth, I've found that the exact value of the resistor doesn't matter too much... as long as there's some load on the circuit. In most cases, a single 50 ohm resistor works quite well.

Keep in mind that these resistors will get pretty hot in any case. You'll want to keep them isolated from electronics or flammable materials.

-----------------------------------------

-Paul

Service Manuals and Guides

  

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Moderatorcs82685Oct-03-09 11:25 PM
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#128092, "RE: Rear 02 resistor mod question"
In response to Reply # 4




          

awesome, thanks for the help guys

Originally posted by VelocitaPaola
Keep in mind that these resistors will get pretty hot in any case. You'll want to keep them isolated from electronics or flammable materials.


I got one of those small plastic project boxes they sell at radio shack to put it in so it is away from everything else.


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
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ModeratorCorbinOct-04-09 05:47 PM
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#128099, "RE: Rear 02 resistor mod question"
In response to Reply # 5


          

If you can't find what you want at Radio Shack, check out:

http://www.newark.com/
http://www.digikey.com/
http://www.alliedelec.com/

I personally prefer Newark.

Corbin
'95 ESI-T

Now with more power and fewer leaks



Humble servant of the Wiki

  

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Moderatorcs82685Oct-06-09 04:57 AM
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#128129, "RE: Rear 02 resistor mod question"
In response to Reply # 6
Oct-06-09 04:57 AM by cs82685



          

Anyone have any ideas on my mismatch with the wire colors two whites and one black vs. two blacks and one white in the diagram?

Originally posted by Corbin
If you can't find what you want at Radio Shack, check out: http://www.newark.com/ http://www.digikey.com/ http://www.alliedelec.com/ I personally prefer Newark.


Thanks for the links Corbin


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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AdministratorCODE4Oct-06-09 06:58 AM
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#128130, "RE: Rear 02 resistor mod question"
In response to Reply # 7
Oct-06-09 08:50 AM by CODE4



          

The wire colors in the diagram are not for 2GNTs, it was a general diagram. I do not know what the wire colors are off hand, but I will check when I get to work and post up.

According to FSM on 97-99s,

Wire from the ECU is White/Black (connection 4)
Wire return is Black/Red (connection 3)

And the two heater wires are Black & Black/Green (connections 1 & 2).

---

2012 2500HD LML


  

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