Looking for more experienced answers to a couple questions.
Its a 1.8t AWM Manual Quattro A4. 2.0t coils, sai delete, cat delete, single mass 240 mm flywheel with s4 clutch, 93 octane.
Modifications have been made to:
LAMFA and LDRXN and the KAT and SAI crosswords and Euro-bytes
I'm having some issues with lambts coming in when EGT model before cat(tabgm) is around 690. EGT for part protection (Tagbts_w) is reading 840 at the when I get the drop in AFR current(lamsoni_w). At the same time, optimum ignition angle(zwopt) is at 25.5 but current ignition angle is at about 8. From reading the Bosch me7.5 Function and Data Sheet I understand that a portion of lambts fueling deals with inefficient ignition angle. So my understanding would be that by feeding more timing in through KFZW at higher loads thoughout the whole rpm range. Am I correct?
Second, I noticed that Engine Load(rl) is up around 170%. Corrected Engine Load(rl_max) and Requested Engine Load(rlsol_w) are around 160. Can I push rl_max and rlsol_w higher by modifying LDRXN, KFMIRL, and KFMIOP higher to reach that 170%?
When I have an internet connection for my laptop I will upload my original, first tune, and next tune, with a xdf.
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I'm in the process of tuning my AWM with a Mazdaspeed K04 (the full turbo, not a hybrid) and 630 Dekas.
I also ended up using KFLBTS (lambda for component protection) to dial in the AFR's. Unlike my B6 S4 where I just used LAMFA, I found I needed to use KFLBTS.
The one thing that you may want to consider is that in order to use KFLBTS for a fueling strategy is that you need to zero out the values in KFFDLBTS (factor lambda for component protection).
As I understand it, the values in KFFDLBTS will be applied to KFLBTS when determining the fueling strategy and as you can see, the values in KFFDLBTS are all over the board.
Also, as others mentioned, you need to make sure that the EGT intervention is low enough that the system uses KFLBTS right from the get-go.
Here's a copy of my stage 3 file if you want to have a look see at what I'm talking about.
PS: to those who know what they're doing, please be kind, I know there is some hack tuning in there, but it all seems to work lol.
PPS: I know that my requested fueling values look to be lean, however my KRKTE is a little out and I needed to compensate. Since this is a narrrowband system, the fueling values are essentially arbitrary for all intents and purposes.
PPPS: this file was written for some 105 octane fuel I was running, hence the high timing values.
PPPPS: *** I'm also running an e-boost controller, so the boost tables could be completely fucked, I just took my best guess based on the data i had at hand. My reason for the e-boost controller is that the lines are a bitch to hook up and since home was 4 hours away when I was scrambling to get all this done, I elected to just use my e-boost controller as I had enough issues getting the car drivable as it was (took about 8 revisions on the side of the road to get the fueling dialed in :p )
Cheers
