NefMoto

Hey!

I've got a DTC which i just can't seem to solve. P0130 (B1 S1 malfunction in circuit). I put a brand new lambda sensor and i've logged it, the values it spits out look perfect. I'm currently running stock software to rule out any issues i might have created myself only KRKTE was edited to account for increased fuel pressure.

What could possibly cause this DTC which is honestly driving me crazy at this point. Things that might or might not interfere: engine has SAI/N249/N112 deletes, catless downpipe, cold air intake (some other mods aswell but that shouldn't interfere). My own "tuned" file has the full deletes for second O2, ESKONF changes and some other goodies found on S4wiki and forum.

Could anyone give me a single clue on where to look, because i'm absolutely out of ideas. The sensor is brand new, the values look good and i'm running stock sofware apart from KRKTE edit.

Did you check the fuse for the O2 heater circuit?

I haven't!

I'm going to check it straight away when I get to the car later today!

Little edit: the DTC doesn't instantly come up, it takes something around 75-200km for it to pop up. Also appears to come up less frequently when making a trip on the highway.

I had this for months changed looms,Lamda,ECU,fuses never solved it.In the end just removed the code from the DTC table in map file

I might just end up doing this aswell, even though i don't like deleting DTC's.

I just don't understand why this code is set, I've also tried different ECU's, checked wiring, changed lambda, changed software but nothing seems to help get rid of this stupid DTC.

i wouldnt advise deleting the p code it still will shut off lambda control it just wont show the code. poor injector calculation can throw the code too

This occures on some firmware when you change O2S config CWKONLS (03 -> 01) in PROKON folder.
Try to set back to original value.
Which is ecu ID number?

I'm running stock 315cc injectors on 4 bar pressure. Only change made to this bin is KRKTE from 0.10301 to 0.08947. Fuel trims look pretty good.

I get the DTC on full stock software aswell. CWKONLS = 3

Only change made is KRKTE as mentioned above.

ME7.5 06A 906 032 DE software number.

Coming back on this thread; I've honestly tried everything in the book. Checking for obvious hardware faults, having used brand new OEM sensors, different ECU, stock software etc etc etc. It seems that i just cannot get rid of this code. After having read on the forum that this code sometimes needs to be patched out this is what i'm resorting to, as i really do not have a clue how to get rid of it. Lambda functions well (it's new how couldn't it) i've also logged it there is nothing odd about it.

I don't have a clue why this stupid code gets set at what seems random intervals.

http://nefariousmotorsports.com/forum/index.php?topic=567.msg44063#msg44063

Now i've tried studying this thread, but i can't seem to understand how to get to the specific code. My error class table starts at 1070F aswell, and i figured my VAG specific table would have the same location as in the thread; 13266. How do I go about finding the P0130 code? (and zero'ing it out). I'd be extremely grateful to whoever helps me out on this one, as i've been struggling with this stupid code for almost 2 years.

This code appears when o2 sensor poisoned with rich mixture
Clear codes start the engine and connect via vcds
Meas blocks 033 031
Wait until o2 sensor starts to work (033 voltage starts floating from 1.520)
Now if you see the voltage go down to zeros and o2 regulation % goes to -25 then its just o2 poisoning false detected as curcuit fault
And the krkte or tvub is the issue in that case for sure

I have tried everything cant fix.. it 3 new sensors 4 different ecus and still have fault. blocks 32 33 stay at 0% clear codes and comes back 2 key cycles later..

Now do the MATHS lol

P0130 @ 2 LOCATIONS

1358A (C) - 13270 = 31A (31C)
31A (C) / 8 = 63
1070F + 63 = 10772  = CLALSH and 10773 = CLALSV

Good suggestion, but it doesn't do this. It goes minus a few % but within fair limits and definitely not -25.

My KRKTE is correct (adjusted for 4 bar pressure), TVUB stock because injectors are stock.

You are a legend! I'm going to check this out and make sense of it... i must be able to understand this.

I get nothing no trims with this error

its pretty easy to understand

Still raises the question why this DTC comes up; what can trigger it? It definitely didn't come out of the factory like this.

I feel quite stupid, CLALSV was defined in my XDF and it says exactly in the FR what it does. Thanks again though.

Now this code can't be a specific SW version issue either. I've got a friend running 032DE 0002 pretty much identical cars both modelyear 2001, he doesn't have the P0130 issue. I've also tried 032DE 0001 or 0002 no difference. Now I know another guy also has P0130 issue but i think it's an AUQ on 032HJ. There has to be some (probably easy) explaination for this.

Hiding the fault is not my preferred method but i'm really out of ideas at this point.

CLALSH is post o2 but i think if you use this it still shows up on VCDS. Setting diagnose codewords to 0 is better.

I have seen this on occasion as well, unexplained.

Its dumb way to mask dtc; no o2 reg and no trims with it

Id say there is few reasons for that

- as gremlin said on some long engines this code appears when setting cwkonls 1
- poisoned with rich mixture at start
- cdlsh and other emissions delete mistakes
- on a stock setup it could be from the second o2 in some conditions if its shows too different mixture than first sensor

Yeah, that does suck. Perhaps a stupid suggestion but maybe i could set a diagnosis threshold to a much higher value? I'll see if the FR makes me any wiser.

Sometimes code gets set after maybe 30km sometimes 100km. Most of the times it doesn't get set when cruising, rather after a WOT pull. But i could be mistaken here..

Worth noting; it has a high pressure in line pump leading up to the 4 bar regulator on stock 317cc injectors. I have calibrated this correctly. (Tune that came on the car corrected using FKKVS, I use KRKTE instead)

- Code gets set on stock software and on my own 'tune'.

- I could try deleting second o2 again see if it stays out; i have tried this before though. I delete according to wiki, and either with or without the second o2 delete i eventually get P0130.

- Poisoned with rich mixture on cold start is definitely something i'm going to check later today.

I'm willing to try anything to properly resolve this issue as it has been driving me nuts for literally years now.

I believe page 443-448 of the FR have something to say about how these conditions are met and set. A lot of abbreviations I haven't seen before so i'll have to do some digging.

CDHSH 0
CDHSHE 0
CDHSVE 0
CDKAT 0
CDLASH 0
CDLSA 0
CWLSHA 0
CDLSH 0
CWKONABG 0
CWKONLS 1
FKHABMN_0_A 0
FKHABMN_0_1 0
SRY thresholds to 0 (SRYAGR, SRYHS, SRYKAT, SRYLS, SRYSLS, SRYTES)

Very helpful user @stuydub has came up with this combination of codwords to get rid of P0130. I'm about to test this out today and have located all these codewords except for SRY codewords.

Attached are two screenshots, i know where 032HN SRY codewords are located. But i'm not 100% on what address the 032DE SRY codewords start. Should it be 0x1097E or 0x1097F?

From DE damos

sry are for readiness status has nothing directly to do with generating that code. I would advise getting another ecu or verify you dont have a 2l 8v ecu. youll get this code with a 2l ecu 

same code on HJ HN MJ all 1.8t this method has fixed all 3 with b1 s1 fault

Alright, thanks.

I have multiple ECU's 032DE and 032DR. Both throw this code, so definitely not an ECU problem.

Notes on this old topic: manifold had a crack which might or might not have caused this

Car is now on a K04-023 kit from a TT225 running 1ML906032A software. DTC hasn't came back  ;D