Necrobump.

I've been having fun with these lately as well. Firstly, I tried modifying my TVUB according to the spec sheet. Idle STFTs went to ~-25%. That didn't look right (KRKTE is more or less correct), so I went to read around and found out that there are multiple reports about these injectors being highly non-linear. But since they come stock on some ME7-equipped volvos, I decided to just look at stock volvo TVUB first.

One of those volvos is S60R with B5254T4 engine. Its "working" fuel pressure is also 4 bar, which is perfect for my application. Here are stock bins, for example (thanks, guitar24t!) I took the bin from the first post, for AT car, and started looking.

Found TVUB at 0x23790, confirmed by disassembly. Factor for voltage looks funny (0.01 vs 0.0704 for audis), but here's the data:

8V	1.8144
10V	1.2
12V	0.7648
14V	0.4992
16V	0.3808

I used 0.032 as a factor for latency itself, it appears correct for the CPU used.
Also, a good "sanity check" for latency factor is "ms" axis in FKKVS map. It uses the same one and if the axis looks funny - your factor is most likely wrong.

Anyway, FKKVS is at 0x23520. I won't post it here, but it's not THAT non-linear and ranges from -2% to +6% across the board.

EDIT:
These TVUB values along with correct KRKTE (0.07448 for 4.2 V8 engine - this will be different for other displacement and/or cylinder amount!) and completely flat (1.000) FKKVS brought me -1 to -1.5% idle and spot on ( 0 to -0.8 ) cruse LTFTs. Therefore, TVUB for these injectors seems to be completely different from the data circulating around on that spec sheet.

Hello ! had the same problem with the nozzles, there is already someone who has set them?
values are now! pours gasoline.

These injectors are not linear in response at middle pulsewidths.
They will need quite significant adjustments in fkkvs compared to EV14's, which are super easy.

Yes.

could someone please confirm the right tvub for those injectors? need to figure that out first in order to start fixing fkkvs. would be great if someone can tell the right tvub table for them.

I thought since was told that volvos use a DECOS fuel system and the factor for the tvub was different to the audi one, that those values were wrong for our use. Am I right?

Here you go.