how-to: Log AFR from the LC-1 w/o a serial cable
#166
Evolving Member
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How does it work?
Does that mean that I have to disconnect the rear O2 sensor signal to plug in the UEGO and than simulate the rear O2 signal with your patch?
Am I not compromising the working of the cats by doing so?
Ideally, I'd let it remain like this and use another ADC for the UEGO (if it's actually available)
Thanks
mlocatel
Does that mean that I have to disconnect the rear O2 sensor signal to plug in the UEGO and than simulate the rear O2 signal with your patch?
Am I not compromising the working of the cats by doing so?
Ideally, I'd let it remain like this and use another ADC for the UEGO (if it's actually available)
Thanks
mlocatel
#167
EvoM Guru
iTrader: (6)
i gather you havn't replaced your front pipe yet?
as far as we know the rear 02 is ONLY for emmisions - in that it checks that your first cat is running ok.
the simulator is normally required for when ppl change their frontpipe (as u will get a CEL) however its useful when wanting to use the rear02 ADC as well (obviously).
yes - leave the sensor connected for the rear 02 heater, and wire up the UEGO to the signal wire.
as far as we know the rear 02 is ONLY for emmisions - in that it checks that your first cat is running ok.
the simulator is normally required for when ppl change their frontpipe (as u will get a CEL) however its useful when wanting to use the rear02 ADC as well (obviously).
yes - leave the sensor connected for the rear 02 heater, and wire up the UEGO to the signal wire.
#168
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Yes I have, I have a 2.75' DP with 200 cell metal cat as first cat.
This can be an option, of course. Then I'll try it.
I have only to switch on your O2 simulator in the Mod's Option, right?
mlocatel
This can be an option, of course. Then I'll try it.
I have only to switch on your O2 simulator in the Mod's Option, right?
mlocatel
i gather you havn't replaced your front pipe yet?
as far as we know the rear 02 is ONLY for emmisions - in that it checks that your first cat is running ok.
the simulator is normally required for when ppl change their frontpipe (as u will get a CEL) however its useful when wanting to use the rear02 ADC as well (obviously).
yes - leave the sensor connected for the rear 02 heater, and wire up the UEGO to the signal wire.
as far as we know the rear 02 is ONLY for emmisions - in that it checks that your first cat is running ok.
the simulator is normally required for when ppl change their frontpipe (as u will get a CEL) however its useful when wanting to use the rear02 ADC as well (obviously).
yes - leave the sensor connected for the rear 02 heater, and wire up the UEGO to the signal wire.
#170
I have a JDM Evo 8 MR, which doesn't have the rear o2? I have looked several times in the ECU pin out diagram but couldn't find the ADC input. I have no idea where to wire the signal to. FYI, I have a Zeitronix ZT2.
#171
Evolved Member
iTrader: (15)
Quick question - since this takes over the rear O2 sensor signal how does that affect fuel trim readings? I assume in order for the trims to read properly (to scale injectors/MAF) this mod would have to be disabled so that the rear O2 signal will be there? I would think though that the signal would be there from the LC1 so it wouldn't matter??
#175
Any progress on the AEM uego formula? For some reason i can't get evoscan to read anything from my uego. I followed the instructions on the first page along with the formula evo8dad came up with and all evoscan reads is 0.
#176
Evolving Member
iTrader: (2)
Can I still do this if I am using the anaolg #2 output (brown wire) for my DB gauge? Can't I reprogram the default output for the analog output #1 (yellow wire) in LM programmer to output the same signal as the default for the brown wire, and use the yellow wire to feed into my ECU???
Thanks for you help and great work figuring this out.
Thanks for you help and great work figuring this out.
#177
Can I still do this if I am using the anaolg #2 output (brown wire) for my DB gauge? Can't I reprogram the default output for the analog output #1 (yellow wire) in LM programmer to output the same signal as the default for the brown wire, and use the yellow wire to feed into my ECU???
Thanks for you help and great work figuring this out.
Thanks for you help and great work figuring this out.
#179
Evolved Member
iTrader: (23)
when I try to use the 75 pinout as per the rre page for an evo 8, looks like it is logging afr but it comes out as my rpm. So RPM now mimics the afr chart.
I didn't see anyone else with this issue, what have I botched?
edited to better indicate what is happening
I didn't see anyone else with this issue, what have I botched?
edited to better indicate what is happening
Last edited by nothere; Apr 18, 2009 at 02:44 PM.