Aftermarket header, new secondary O2 sensor, code P013A
 

P013A indicates a slow sensor. Sensor was replaced due to damaging the OEM. OEM sensor threads welded to OEM header.

My question is what should I try next?

1. The MXP header as shown in this image (this is the EL version, mine is UEL), has a separated 90 degree bung. Could the be causing the issue? Should I try removing the 90 degree bung and plugging the sensor directly into the header?

2. Would this indicate that my aftermarket O2 sensor is not working right? (ordered from rockauto) It looked perfect and I have to assume this probably isn't the case or I would get more errors?

3. Should I simply disable that DCT from the tune and carry on? This code is the only CEL I have gotten since replacing O2 sensor.


So what do you guys think? 1, 2 or 3?

Thanks for the help!

New sensor might not be electricly compatabke with oem , ecu expects certian charasteristics.

Try removing the 90 spacer.

If the new sensor is not sending corrdct signsks to ecu it nay be causing you other issues lije rich cruise fueling. You may have to do more than just diabke that one code, you may also need to zero out all the rear o2 compensations they are calked AF#3 in romraider

Or get an oem sendor from an auto wrecjer recycler

Yea, I am so sick of fighting this second O2 sensor. I tried to go the route of zeroing compensations but my OFT tunes don't have the AF#3 tables.

Is it possible to get a copy of my tune (Stage2 UEL) with the AF#3 in it?

A lot of stuff on Rock Auto is crap esp. if you go for the least expensive option.

You need the def, with the sxtra tables defined which calid rom are you

Stage 2 UEL 93oct JA1B00C

I would definitely try removing that right-angled adapter as you don't need it in rear 02 with oft tune. It may solve your issues without altering tune.


OK thiers lots of different calid hacks on oft tunes but ill assume your OFT B00C rom is actually a B01C internally


If so here a def with AF #3 parameters


Please read the Romraider TIPS link below in signature and carefully check several tables in your rom with this definition. If anything looks strange don't use it

Thanks very much.

Not so sure about the B00C vs B01C but everything in my OFT says B00C. Looking in my tables seem fine, but not sure what I would be looking for if it was incorrect.

As a final verification, all three A/F #3 tables should be set to a high/low of 0 correct?

Does this last row (7600) seem strange?

https://i.gyazo.com/22eef2f60ba6b7f6...275fa6a457.png

that last line is part of soft rev limiter ie retarded ignition timing so that's ok.


yes set all three af #3 comp tables to zero

Welp, I zeroed the tables and saved the custom rom, loaded it into my car and now it's bricked.




Joking! ;D Seems to run fine. Monitored my AFR. Jumps around a bit but at cruize it seems to stick around 14.7, and after about 20 seconds at idle it jumps from like 13.7 to 14.7.

I noticed that in VSC Sport mode it felt very linear and like I couldn't really push the car, same with TRAC OFF (Holding Trac Off for 5 sec). In normal mode the car rips it up, but nanny is always watching.

Zeroing those AF#3 compensations just stops the rear 02 from having any effect on AFR.


however you may still need to disable the cel codes associated with the rear sensor.

So the difference in throttle in sport mode is just the tune?

Also the definitions do not support disabling P013A CEL. It wasn't in the list of codes. :(

My understanding is that the throttle mapping power etc is exactly the same in sport or trac of modes as in full nanny mode.


The vsc/trac system will however intervene at much lower levels of wheels spin slip/slide and then limit throttle/power and/or apply brakes. I suspect this is what your feeling.


but if no slip or loss of traction should be same in all modes

Damn, 2 CEL. One was P050B, I disabled the cat warm up to reduce noise on my neighbors. I am able to disable that code, but P013A is not in the definitions. Is there an easy way to add that DTC to the definitions without losing the A/F#3 tables?

EDIT: I looked in the XML definition and found both entries for P013A, but it still doesn't show in Romraider. o.o