Want to remove/disable your rear O2 sensor without a CEL? Here's how..
Newbie
Joined: Apr 2007
Posts: 31
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From: Norway
Make sure to go to options and set the user level to developer, then close ECUflash and reopen it. The factory setting for min temp closed for your EDM is 0*C where the US is 7. Double check to make sure your value is somewhere in between. If it is too high then you will get the P0125 code, though I am not sure what the exact trigger point is (I know setting it at 70*C will definitely set it off).
faa is the O2 sensor CEL and it is the same as the USDM cars. The factory value will be 56DA, lower this to 56D8 and it will be OFF.
faa is the O2 sensor CEL and it is the same as the USDM cars. The factory value will be 56DA, lower this to 56D8 and it will be OFF.
I don't understand why the fault code is coming when doing this mod, I thought the only thing that changes is the 56D8-value - and what has that got to do with temperature? Thought it only had something to do with the O2 Cel.
hrmm this P125 thing is pretty common on google when rear O2's go ****ty...
another text for the code is "P0125- Excessive time to enter closed loop fuel control" this makes more sense, and I can see why its confused with coolant temps...
however I am not really any closer to finding the solution within the ECU... (yet) :P
another text for the code is "P0125- Excessive time to enter closed loop fuel control" this makes more sense, and I can see why its confused with coolant temps...
however I am not really any closer to finding the solution within the ECU... (yet) :P
Weird. So the EDM cars do not have OBDII like we do, even though the map structure is strikingly similar. Unfortunately Zamot, I am not able to take care of this one I guess. It was worth a try though.
can someone with this working on there car do a log of MUT18 and MUT1E and send it to me?
I need the value when in openloop and also the value when in closed loop...
cheers
dave
I need the value when in openloop and also the value when in closed loop...
cheers
dave
Last edited by tephra; Aug 21, 2007 at 11:48 PM.
Newbie
Joined: Apr 2007
Posts: 31
Likes: 0
From: Norway
No solution for the P0125 fault code on euro cars yet?
John: could you explain the temperature setting? (what does it do, and which values are 'safe')?
I think I will try to mod the sensor's placement so it sits in a pipe some cm's away from the exhaust pipe...
Or use the zeitronix lambda output (adjusted down) to fool the ECU, but I guess then I would have to do the O2-heater mod as well.
John: could you explain the temperature setting? (what does it do, and which values are 'safe')?
I think I will try to mod the sensor's placement so it sits in a pipe some cm's away from the exhaust pipe...
Or use the zeitronix lambda output (adjusted down) to fool the ECU, but I guess then I would have to do the O2-heater mod as well.
Newbie
Joined: Nov 2006
Posts: 65
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From: France
Zamot
that's exactly what it did on my EDM evo IX - put the Innovative LC1 instead of the OEM rear O2 - add a resistor to the OEM heater wires - connect the LC1 NB1 output to OEM NB wires - and finally reprogram the LC1 NB1 output (shift down the 2 trigger points - dont't remember exactly by how much - will check it if someone need the info)
that's exactly what it did on my EDM evo IX - put the Innovative LC1 instead of the OEM rear O2 - add a resistor to the OEM heater wires - connect the LC1 NB1 output to OEM NB wires - and finally reprogram the LC1 NB1 output (shift down the 2 trigger points - dont't remember exactly by how much - will check it if someone need the info)
Newbie
Joined: Nov 2006
Posts: 65
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From: France
Hi Moro,
the 2 trigger point of the LC1 analog output 1 was reprogrammed to AFR 13.7 and 14.7 (do no change the voltages values).
No CEL since 4 months with these settings !
the 2 trigger point of the LC1 analog output 1 was reprogrammed to AFR 13.7 and 14.7 (do no change the voltages values).
No CEL since 4 months with these settings !
Newbie
Joined: Nov 2006
Posts: 65
Likes: 0
From: France
with this the CEL should not be trigered but beware that you will not pass the emission test !