NefMoto

Technical => Reverse Engineering => Topic started by: ender on April 15, 2015, 04:26:30 PM



Title: Re-enabling deleted rear o2 sensors
Post by: ender on April 15, 2015, 04:26:30 PM
Hey All,

Relative noob to Nefmoto / ECU stuff, but I have a technical & programming background, so I've got the basics down. 

I have an EPL tune with my rear o2s coded out on a B5 S4 that is now in Colorado.  I was wondering if anyone has any information on re-enabling the rear o2 sensors so they will pass readiness?  I have re-installed the stock, catted DPs and put the rear o2s back in, but the car will not set readiness for the rear o2s, both via driving and forcing the tests in VCDS.  I am assuming this is because the CDKAT & associated blocks are zero'd out?  I loaded my bin and compared it to the stock M-box bin and saw that the default values are 1 for the blocks that were changed. Will my edits below effectively re-enable my rear o2s? (All other o2 related blocks were the same as the stock bin)

Edit Log for EPL605.bin created by TunerPro.
**************************************************************************
04/15/2015 17:03:05  Scalar:    CDKAT changed from 0.00  (0x00) to 1.00  (0x01).
04/15/2015 17:03:09  Scalar:    CDLSH changed from 0.00  (0x00) to 1.00  (0x01).
04/15/2015 17:03:15  Scalar:    CDHSH changed from 0.00  (0x00) to 1.00  (0x01).


Title: Re: Re-enabling deleted rear o2 sensors
Post by: ddillenger on April 15, 2015, 04:34:06 PM
Go on the s4wiki.

Read what it says on the deletes. Compare your file to a stock one. Insert stock values.

:p


Title: Re: Re-enabling deleted rear o2 sensors
Post by: ender on April 15, 2015, 04:44:52 PM
Go on the s4wiki.

Read what it says on the deletes. Compare your file to a stock one. Insert stock values.

:p

Cool, that's what I did.  I was basically looking for confirmation that that's all there is to it.


Title: Re: Re-enabling deleted rear o2 sensors
Post by: ddillenger on April 16, 2015, 12:49:20 AM
Cool, that's what I did.  I was basically looking for confirmation that that's all there is to it.

thos 3 scalars? There can be much more to it. IDK how complete the removal was.


Title: Re: Re-enabling deleted rear o2 sensors
Post by: ender on April 16, 2015, 01:13:26 PM
thos 3 scalars? There can be much more to it. IDK how complete the removal was.

Yup, there were a couple more that I changed back to stock values.  Changes are below.  Anyway, now the car passed readiness across the board!

04/15/2015 18:17:24  Scalar:    CDKAT changed from 0.00  (0x00) to 1.00  (0x01).
04/15/2015 18:17:35  Scalar:    CDLSH changed from 0.00  (0x00) to 1.00  (0x01).
04/15/2015 18:17:43  Scalar:    CDHSH changed from 0.00  (0x00) to 1.00  (0x01).
04/15/2015 18:23:38  Scalar:    CLAHSH changed from 0.00  (0x00) to 3.00  (0x03).
04/15/2015 18:23:40  Scalar:    CLAHSH2 changed from 0.00  (0x00) to 3.00  (0x03).
04/15/2015 18:23:42  Scalar:    CLAHSHE2 changed from 0.00  (0x00) to 3.00  (0x03).
04/15/2015 18:23:44  Scalar:    CLAHSHE changed from 0.00  (0x00) to 3.00  (0x03).