NefMoto

can someone more knowledgeable than me look at my log and tell me what is going on please?
Maybe I'm reading it wrong. Maybe its says its boosting to 18 but I'm requesting 29? Lol something isn't right, any help would be appreciated.

well this should explain it to you.
what have you changed hardware wise and what have you changed software wise

i can answer for everyone being you didnt post ecu number, engine hardware mods.... nobody is a genie, you want help but you have to help us too

2001 audi tt 225Q 8N0906018AT completely stock. I modified  ldxrn, ldxrnk, kmfirl, kmfiop, and kmfiop axis. I think it was in limp mode because it didn't pull like it used to. I had a lean code so i did a boost leak test and found 3 leaks, 2 under the intake and one on the firewall all on the brake booster lines, no engine lights, so I fixed the leaks and cleared the codes. Now it pulls hard but has a miss/cut around 3000-4000 rpm. Can't figure out whats going on. Installing a boost guage tomorrow and a new diverter valve.

P.S. when I look at it in ECUxPlot it doesn't show the same result it shows about 6 or 7 psi? Is the pic you posted my csv? because the file number up top doesn't match.

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So you turned up the boost but left fueling and timing stock? Youre going to end up with a hole in the side of your block after the engine folds up a rod from preset or melts a piston.

Don't want that haha. Thats why I was asking about the lamfa parameter in my files in another topic I started,
https://r.tapatalk.com/shareLink/topic?url=http%3A%2F%2Fnefariousmotorsports%2Ecom%2Fforum%2Findex%2Ephp%3Ftopic%3D18103%2E0&share_tid=18103&share_fid=64425&share_type=t&link_source=app.

 Because when I look at that table it doesn't make sense. I uploaded my files in that post for you fellow gents to look at.

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Odds are its not for your exact software version. Just because its the same ecu number doesnt make it the same theres different versions v1, 2, 3 etc. Some maps are not exactly in the same location. That or the map pack has errors

How do i figure out which one is the problem lol

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Is it possible to flash a different/better defined bin?

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Post your ori and edit.

In most cases yes, If yours is a wideband ecu I would suggest finding the file for the CB TT file thats on here.. TTQS posted it.

I would also emplore you to find the translated modules of the FR as text documents on here and review those. It will help you establish and understand some basic relationships of certain parameters that you are adjusting and WHY you are adjusting them, overall why they do what they do.

They can be confusing at first to understand, but read them, read them again, think about it, then read them again. If it helps to draw a web and "net" it to see the relationships and how it progresses...thats a great step.

The cb file is 1024kb and mine is 512kb?

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If yours is 512 then your gonna have to find a defined 512. I dont know of any off the top of my head. I have been lucky enough everything has been 1024k

Okay i will keep looking. Thanks

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I'm really thinking its fuel. What are the parameter names that i need to log fuel

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https://s4wiki.com/wiki/Tuning#Open_loop_AFR

Good starting point would be going into visual logger and searching "lam" and seeing what parameters it comes up with. If you read the link above (suggested to read whole thing) it will give you key words to look out for and will help peace together whats going on and why.

A lot of time was put into assembling that page by a lot of senior members here and it literally can help you through most of the basic stuff to at least get you on your feet.

Mr Trinity,

Your ECU is narrowband. I put time in making an XDF for your ECU (http://nefariousmotorsports.com/forum/index.php?topic=18092.0title=).

I was waiting for feedback on the Stage1 tune I gave you (free) almost a week ago.
You may disagree with what I did (merely raised LDRXN, which is all that is really necessary for a basic Stage1).
I also pointed you to my excel sheet for ME7 tuning (in which I have invested many many hours of my time and knowledge).
I am not sure what you have done because your engine should not have gone into limp mode as is clearly the case from the logfile by just increasing ldrxn a little, so I am guessing you have not tried my file.

Everyone here that knows anything about tuning has put in many hours (years) to learn, research and develop. It is a steep learning curve to start with but it gets easier with time. I wish you the best of luck

I may have been a little too harsh. Sorry.

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I have tried the file but it turns out I've been chasing demons in the car. I had some leaks under the intake manifold and a few other spots that I have been working on. And me letting you know what was happening, was feedback i thought

Ldrxn only is not a good mod. Fueling is lean until bts kicks in thenits pig rich.

Mr skiddles,
My advice is to read threw the community projects mainly the b6 a4 thread. Your ecu andbthat b6 thread are both me7.5. There are some differences but its close enough on the main bits it should help you oit quite a bit

Also i just wanna add if someone is willing to give something away for free odds are its shit. No offence to anyone its cold hard facts.

Thanks Marty,
I have been reading that thread and still keep going back to it, I have been reading alot of things on here, there's so much to take in it gives me a headache

By your own words this entire forum is shit. 'Cold hard fact'?

I suggest you do some more research re ldrxn, and then ask yourself if you're here to freeload or to contribute

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Providing a file with shitty changes vs community discussions that benifit the whole group is not even comparable. My point is pointing somone in the right direction is worth a lot more then providing a shitty file that could blow their car up.

I think you misunderstood what he's saying :)

I didn't want to start anything lol. All I'm trying to do is figure this out and then hopefully learn how to do everything on my own so that in time I may contribute to others.

Back on topic,

i think this needs to go to diagnosis, what are things to look at, that would cause a backfire/misfire pop sound (just one pop) everytime i  get in to 16 -19 psi boost? im going to smoke test the piping and lines. what else?

Find a 512kb defined file and damos and crossflash it, make sure the bootrom is the same and you are (usually) good to go. That will give you a full fresh file and proper mappack to start so you can make your own changes.

With utmost humility I ask: Please, refer me to your most recent constructive contribution to this forum. Just the URL to your post will suffice.

So i only found one leak and its coming from the secondary air pump, the rivets are shit and the pump is splitting open. Would that cause any lean/rich problems?

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Dude suck a dick. I contribute to this fourum all the time, i dont have to justify myself to you or anyone else for that matter. Fact is you supplied the op with a shit ass file that would bend rods. Turning up boost without any other changes is neglagent to say the least. All that did was send the op for a loop of misguided shit. Its not that hard to link soneone to useful info (like I did).

Update:   i went out and ran her a little hard to see if i could get her to throw a code......and guess what......

Wednesday,01,July,2020,21:58:03:00233
VCDS Version: Release 19.6.1 Running on Windows 10 x64
www.Ross-Tech.com

                Address 01: Engine       Labels: 06A-906-032-AMU.lbl
Control Module Part Number: 8N0 906 018 AT
  Component and/or Version: 1.8L R4/5VT     G   0003
           Software Coding: 06710
            Work Shop Code: WSC 87119  
                      VCID: 03053A0B1115F15784-5178
5 Faults Found:

18010 - Power Supply Terminal 30
            P1602 - 35-10 - Voltage too Low - Intermittent
16684 - Random/Multiple Cylinder Misfire Detected
            P0300 - 35-00 -
16688 - Cylinder 4
            P0304 - 35-00 - Misfire Detected
17521 - Oxygen (Lambda) Sensor; B1 S1
            P1113 - 35-10 - Internal Resistance too High - Intermittent
16686 - Cylinder 2
            P0302 - 35-00 - Misfire Detected

Readiness: 0000 0000

The terminal 30 has always been there since I got the car.

so where do i go from here?

guys dial it back a bit, thanks. Don't make me start deleting.

Do yourself a favor and buy a widebamd gauge. Your car is narrowband and really not the best for tuning. Thats not to say it cant be done without but youre going forward half blind. Pull the boost out of it, get full throttle fueling request some place around .84-.86 lambda in ldrxn, edit bts fueling so it doesnt go pig rich when its switches on.

Ok just ordered an aem widband kit. Should have it by fri. Or sat.

Edit: am I going to be able to use the wideband since my ecu is narrowband? Or do I need to just put another bung in the dp? Or do I need to get another ecu, if I need the ecu then I will cancel my order.

You will be using the wideband kit that you ordered as a Supplementary device for YOUR observation. The ecu isnt going to do dick with it, but you can SEE what its doing and correlate that to the numbers so you know where its at and can see the differential in your fueling so your head isnt metaphorically in a pillow case to whats going on.

With the misfire codes I would pull your plugs and make sure that they are in fact still there and not damaged. After that, I would start checking your coilpack harness for shorts as the terminal 30 error usually shows up in relation to that. 1.8 engines EAT coil harnesses. They get fried by the heat and the sheathing just cracks and they arc on themselves.

Don't do shit with the wideband (or any tuning) until you've fixed every one of your DTCs.

Ok thanks @auriaka I will check the harness after work.

@nyet thanks for the input. I know I need to fix them. But honestly they were not there till the tuning with higher boost among other stuff lol.

Thanks everyone I will see about new plugs, coils, and check the harness.

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Can you give a breaf rundown of whats been done sense you first flashed the car? What have you changed ?

Update: changed coils, spark plugs and fixed coil wiring and she pulls like a dream thanks everyone for the help. No more cutout/misfire at high boost.

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So coil wiring was porked?

Yup....but so was one of the sparkplugs

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