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Old Oct 24, 2008, 06:22 PM
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rear o2

I can't get my rear o2 to read on any scan software. What periphery do I need to change in order to get it to read? I'm not getting voltages or anything. I have no cat with antifoulers on the rear o2 and the rear o2 simulator enabled. What do I need to change?
Old Oct 25, 2008, 03:49 AM
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it's probably because you have the rear o2 sim enabled... i haven't fooled around with any of this mod... i have mechanical cel-fix (just like the antifouler) on my rear o2 sensors, and never had a problem...
Old Oct 25, 2008, 05:41 AM
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So turn off the simulator and is there anything else under the periphery that I need to check?
Old Oct 25, 2008, 07:42 AM
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I just installed this patch-
<table name="Rear 02 Sim Hook" category="Rear_02" address="c250" type="3D" level="1" scaling="Hex16">
<table name="Code" type="Static X Axis" elements="1" scaling="Hex16">
<data>Hex16</data>
</table>
<table name="Address" type="Static Y Axis" elements="10">
<data>C250</data>
<data>C252</data>
<data>C254</data>
<data>C256</data>
<data>C258</data>
<data>C25A</data>
<data>C25C</data>
<data>C25E</data>
<data>C260</data>
<data>C262</data>
</table>
</table>

<table name="Rear 02 Sim Subroutine" category="Rear_02" address="4a000" type="3D" level="1" scaling="Hex16">
<table name="Code" type="Static X Axis" elements="1" scaling="Hex16">
<data>Hex16</data>
</table>
<table name="Address" type="Static Y Axis" elements="20">
<data>4A000</data>
<data>4A002</data>
<data>4A004</data>
<data>4A006</data>
<data>4A008</data>
<data>4A00A</data>
<data>4A00C</data>
<data>4A00E</data>
<data>4A010</data>
<data>4A012</data>
<data>4A014</data>
<data>4A016</data>
<data>4A018</data>
<data>4A01A</data>
<data>4A01C</data>
<data>4A01E</data>
<data>4A020</data>
<data>4A022</data>
<data>4A024</data>
<data>4A026</data>
</table>
</table>
Now I'm getting rear o2 voltages on the scanner. Hopefully the combination of both sensors working will let the cat monitor set.
Old Oct 25, 2008, 10:19 AM
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If you have a tephra 5.10 ROM, this patch is already included in tephra's mods.
Old Oct 25, 2008, 10:39 AM
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I got everything to pass except 02 sensor. I even got heated o2 and cat to pass.
Old Nov 3, 2008, 07:29 PM
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Got a fault for rear o2 sensor voltage/reference. Any ideas? Voltages are reading according to evoscan.
Old Nov 4, 2008, 06:48 PM
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i thought the rear o2 disable was for 05 roms only?
Old Nov 4, 2008, 09:11 PM
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Originally Posted by Nood1es
i thought the rear o2 disable was for 05 roms only?
It exists as a standalone patch for non-tephra '05 and '06 Evos. tephra has included it in all his recent ROMs.




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