Hi guys, this is my first post here.

I have Volvo S60 with 2.0T LPT (CR 9.5:1) B5204T5 180hp engine. It was remapped to 230HP. It was driving very good, but only few miles after battery disconnect. With miles, the throttle response (and overall power feeling) was becoming more and more sluggish.

I've decided recently to upgrade engine with FMIC, TD04HL-16T turbocharger from 2.3 T5 and blue injectors from the same 2.3 T5. Then I (carefully driving) took the car to the tuner, who said that there's no problem to do such a remap for my bigger turbo and injectors. After few days I got the car with NO CHANGES in software at all. They said that car on this setup makes 1.1 bar boost, 266hp, 334Nm of torque, and that stage 1 remap that was still in ECU is perfect for that turbo, and I can drive with no worries.
He also said "they wanted to make more power but weird things (?) were happening to boost pressure above 1.1 bar."

So... I know that this is BS. And literally no one in my country just wants to do such a remap for Volvos. They only do remaps on stock cars with stock components. When it comes to do something more complicated, they don't want to.

Car runs, it hasn't exploded yet, but boost increases almost instantly to 1.1 bar. There IS more power of course, but there's torque intervention frequently. Also AFR is 14.7 at all loads/rpm which I checked with borrowed Innovate wideband o2 sensor.
Fuel trims oscillate near zero, so no limp mode or check engine light.

So! I have to do it all myself. I've downloaded 1024kb .bin file via MPPS to my PC and start learning about how to find maps, etc.

Firstly I found LAMFA, and edited it to 11.8 at high loads, just to drive more "safe".
What should I do next? LDRXN 6x16 (Volvo version) is maxed at 164, which corresponds to ~0.94bar boost. And on my boost gauge there's 1.1bar. Highest value in KFMIRL is 161. KFMIOP is untouched and goes to 40. Axis goes to 131. KFZWOP untouched.

KFLDHBN is maxed out flat - is it maximum boost limiter?
KFFLLDE and KFFSLDE are weirdly flat. On other volvos it's not like that.
KFLBTS - values are HIGHER THAN 1 on max loads. It's weird, or It's not KFLBTS map, maybe I'm wrong.

I guess I should lower KFLDIMX values to get my boost around 0.9 bar.
I did it but needs tweaking.
Then what? Raise KFMIRL and KFMIOP? only axis and leave Z values inside map? They go only to 39.
When I raised that values to about 90, and corresponding axis to mach those maps, ECU entered limp mode with no boost at all.

I know i should log the car, maybe I will build some cheap logger in near future, but all help is welcome. Maybe I don't know what I'm doing.

Here is my original OLS file with all maps I have found, using S60R damos and other VAGs files. I started to learn about 2-3 weeks ago,from nothing so I'm not 100% sure. This is untouched stage 1 tune which i received from the first tuner. Second tuner didn't do anything to the file. Unfortunately I don't have original 180hp version.

Other 2 files are modified by my like I described.
Thank you in advance.

Thanks for reply, I'm from Poland.

It's KFLDRX which I found in google.

The internals of this engine are not so weak like for example 2.5T, because of thicker cylinder walls. They are like in 2.3T.
Only the piston stroke is short, so low "native" torque can be generated.

I mean that I have OLS file from S60R with manually defined maps.

I've already copied the KFLDIMX values from S60 2.3 T5 which comes from factory with 16T. And lowered them slightly. Boost is much better controlled now, I think. Goes linear with acceleration, don't just shoot up instantly.

You need to read more...

The engine has a non forged crankshaft and pressed, non cracked very long rods. Weaker bearings and a weak short  piston wall. Every single aspect is not good for low end torque...

Yes it has 81mm bore, but that's the only good news and really the only similarity to the T5 engine


Copying KFLDIMX can be a start, but you need about 30 maps and curves more for the boost functions to get boost right. Mostly PID parameters because it is too slow calibrated due to the small factory charger. Read VAG ME7 Funktionsrahmen, every LD* function.

Not to mention what else to do. Torque monitoring, fueling, etc.

And watch the boost vs. rpm. You probably already worn out the rod bearings...

Can somebody share Volvo SDA/DHA? Need to test some vars in RAM.

Hello,

As winter is coming, I am starting to have issue with my coldstart and warmup on my Volvo V70R MY 2004 with E85 tune with EV14 650cc injectors fitted.

No issues were spotted with Petrol and in summer, rest is working fine, so I am pretty sure it is due to non fitted coldstart maps.

I already modified KFWKSTT which was great help for cold cranking start but for idle warmup, my car is lumpy and have hiccups, even maybe misfires which all are gone when engine is hot.

I think I have to alter the map KFFWL but I really can spot it in my bin (I don't know how to use IDA either  ).

I tried all side by side Audi tune comparison and some of the map finder tool available in this forum without success, Volvo ME7 is so different  

I thank everyone who can help me to find that map, see my bin original and modified attached!  

Larry

Thanks for your help and support.

Not quite easy indeed, it was much easier with my previous SAAB but I got great support on this forum! 

To give you some more information about my tune, my main target was to build sort of daily Flexifuel setup so this why I may have strange values in my bin:

- Iginition was not changed much from stock because I did not wanted to create issues with petrol and I was not looking for big "boost" by ignition. Butt dyno says it's OK but I did not think I was on risky area. Should I back it off to stock?

- TVUB: I simply used the spreadsheet from my injector dealers (IPD Usa which uses base DW injectors, I can attach the file here: I took the value for 4bar fuel pressure), I thought they got it right.

- KRKTE: I "guesstimate" by looking LTFT betweel fuel petrol and full E85 and find something in the middle to "adapt" within ECU range depending of fuel. I saw this method on the forum and seemed reasonnable to me but I could get wrong.

- FKKVS: As I read over the forum, many people keeps their FKKVS stock or put all 1 due to their linearity. I tried both but I I still got issues with idle STFT which was oscillating in a big range to me (+/-8% at max). I read that TVUB is moslty responsible for idle STFT issues but as I consider this as input from my spread sheet, I did not dare modify it.
So this why I end up with a FKKVS like with higher in lower pulse range because it seems to reduce my idle STFT oscillating range (but I agree, it may not be the proper way to do...)

I have unfortunately not much device for logging (most used is CAN reader + torque) so I mostly rely on driving feeling and some performance measures.

My target was just to get a safe flexfuel tune for my car which I can use daily 365 days/year and if you a have any tricks I use to optimise it, I am always willing to try and learn !

Larry

I took a break from tuning for a while and today decided to play around again. Got my MPPS all hooked up with my test ECU and for the life of me can't get it to go into boot mode. Either my MPPS is dead or I have something wired incorrectly.

I am using this diagram for 2002 ME7.1 ECU. Is it still accurate or is there another diagram I should be using?



Edit: I think my MPPS is toast. Getting 12 volts on K Line. Pretty sure that's not suppose to do that.

Hi All,
       Does anyone have 0261S04511 chip program? Thanks.

Br.