For reference, this is how FKKVS looks on those previous files (which I had nothing to do)



A pro map  

I'm fixing things as I go but that timing intervention is quite annoying.

Do take note this was written when the car was with a returnless fuel system.

And this log was taken about 45mins later after eating. No changes other than a full belly.


WTF IS CAUSING THIS!? Clearly something is activating/triggering intervention.

that's because it's not WOT I'm worried about. It's the fact I'm pulling timing at IDLE, PART THROTTLE, THROTTLE TIP-IN, AND DECEL.

If you look at the last log, when it starts, the ecu is pulling timing at idle. I rev the engine and the timing pull stops and stays at zero. I get moving and it comes back. Maybe that's a clue?

WOT has been consistent with every other run I've logged in the past where it pulls a degree or two up top. The only difference is when this lower load timing intervention occurs it results in a couple degrees less timing up top which is aggravating but AGAIN it's not WOT I'm focused on in this thread.

You know it's kinfa funny, after spending so many hundreds (if not thousands) of hours making my own DAMOS. I almost don't want there to be a DAMOS for that file lol. It would seem awfully anticlimactic to see my work made obsolete.

Then again, it would be kinda cool to compare the two and see how close I was.

Odd that there were never any DAMOS files released for that engine though. Although it's a low volume production unit, it's not THAT rare. Hell, there are 2-3 different DAMOS files for the W12 engines, which are far more rare.

OP, you may want to ask your tuner where he got his 4.2V8 DAMOS, it may look awfully familiar lol []

Yes, you're right. All that advice is fine and dandy but i'm still looking for someone to lend a hand. I'm not an engineer. I'm not a computer programmer. I'm just a customer reading and learning and i have a car that someone else is tuning.

Would you like to take a stab at disassembling the torque path so those variables i need to log the ENTIRE limiter path can be located?

Exactly. NA->FI is NOT something you're going to be able to DIY, even with help in this forum, unless you are really very very good at everything, not just tuning and cars, but programming, disassembly, assembly, etc.

The list is pretty long..

You should not have gotten into a NA->FI project w/o more due diligence.

Alright, i get it! LOL...poor choice of words

Fueling was cleaned up last night. FKKVS needed a "haircut".

Anyway...well damn. This might take a while.

Guess i can at least start with logging. Here's what i have available to me currently:

;mifa_w; {}; {indexed engine torque driver command}
;mifab_w; {}; {Limited indexed Driver input torque}
;miges_w; {}; {Indexed desired engine torque for transmission protection}
;migs_w; {}; {Indexed desired engine torque for rapid intervention GS}
;miist_w; {}; {indexed engine torque high-pressure phase value}
;misol_w; {}; {Indexed resultant desired torque}
;misopl1_w; {}; {Solluftmoment, calculated back to lambda = 1 and zwopt}
;miszul_w; {}; {Maximum permissible indicated torque}
;mrfa_w; {DriverRequestedRelTorque}; {Relative driver's desired torque of FGR and pedal}

;B_mibeg; {}; {Condition} torque limitation is active
;B_krldy; {}; {Condition load dynamics for knock detection active}
;B_fev9; {}; {Condition long load exceeding rl over max value}
;B_fev10; {}; {Condition short load exceeding rl over max value}

;rl; {} engine load; {} relative air charge
;rl_w; {} engine load; {relative air charge (Word)}
;rlsol_w; {EngineLoadRequested}; {Target} filling