Ill try it again tonight. I'm also going to unplug the o2 sensor and see if that helps.

 

OK, I checked to see if I had flashed the correct ROM and I also check for the code one more time.
I was mistaken I thought I saw the p0420 code this afternoon, but it was really the P0140 - 02 Sensor Circuit No Activity Detected

I've checked and rechecked to make sure I disabled what I was supposed to correctly, I'm out of ideas.

 

You MUST clear the code after doing the disable mod...

Let me know if it comes _back_ after that

 

I did clear the code 3 days ago when I first did the disable mod. It seams I have not popped the p0420 but now I get the P0140 which I never had before the disable mod. which leads me to think I did something wrong during the disabling process.

Ill flash the ecu one more time and clear all codes and get back to you.

 

You will get P0420 when you havn't done the ECU_OPTIONS_2 bit1 = 0

once you do that you will then get P0140.

you then need todo the P0139/P0140 disable to get rid of that code.

 

the first thing I did was = 0x0 for the P0139/P0140

I sent you my ROM

 

yep i got it...

i'll wait to see your results for clearing the code and driving around for a bit

 

OK, two days and 35 miles later and still not light woo hoo.

 

Turned the car on today and the light was back. P0140 - 02 Sensor Circuit No Activity Detected.

 

cripballer is testing a theory this DTC disable ONLY works for 52680020.

52680015 was his, yours is 52680018.

maybe the people that report its ok have widebands plugged into rear02, hence they have activity...

i will do some more research when I have a moment

 

^ Agreed.

As I mentioned before, the disable worked for me but I have 0139 due to having a WB input into the rear O2 ADC. Verkion as well (IIRC).

 

ok so that DTC is only for P0139...

just gotta find P0140 :P hehe

 

Here is the download link to the new rom I came across. 2010 USDM EVO X MR

http://www.mediafire.com/file/aodmznymj2m/2010 USDM EVO X MR 55580005.hex

Looks like we need xml, mode23 and dtc disables.........Thank you

 

Here you go:

http://norcalmotorsports.org/users/b...0/55580005.xml

Mode 23 is incorrect so DO NOT USE IT currently. Hoping Tephra can find those addresses for us

- Bryan

 

Thank Tephra:

55580005
<table name="IFMode 0x05 -> 0x23 #1" category="Misc" address="7f107" type="1D" scaling="Hex8"/>
<table name="IFMode 0x05 -> 0x23 #2" category="Misc" address="8ad43" type="1D" scaling="Hex8"/>
<table name="DoMode 0x4D -> 0x5D" category="Misc" address="8ad4a" type="1D" scaling="Hex16"/>