I also think it might be possible that those tables are configured wrongly in the XDF, as I don't have 9 cylinders... Anyway, if I disregard the channel #8 there, it looks like this is not a firing order, it appears to be something like a delay, where the "constructing" table is used for d...

ohh I get what you're saying now. The manifold runner configuration is not the same in that it doesn't really "pair" the cylinders like the l31 lower manifold does, so those tables could be wrong. Ohh that's interesting. I wonder if thats the source of the choppy AFR I see when under more ...

I cant find any table like that in airflow dynamics, but here are the tables for fuel dynamics:
I would sort of expect them to be correct, as I havent changed them, and they came from a reliable source. Worth checking though, I suppose.

I would certainly be interested in learning more about RAM logging, do you have any information about what RAM addresses I should be logging? Is there a document around that I should be looking at, or some other way to find parameters to log?

Here is a log with those changes. I dont have fuel trims on. The more I look at it, the more I feel like the VE/MAF tables are just not tuned in those dips. Maybe its just that simple? This log is with the previous injector changes as well, and it doesnt seem to have made any difference. I still do ...

looks like the 12212156 "Min deliverable injector PW for fuel dynamics compensation" scalar _could_ be the same as the 9373372 "Min_Pulse_Width" scalar in universalpatcher? the "Min_Pulse_Width" table description says "This is the minimum pulsewidth the pcm will co...

hmm, looking further into this, I think I got the small pulse adjustment from another car. Probably one that runs the bigger ls1 injector (I bought these before I knew that there were two types and of course I end up with the more obscure ones). I cant find the small pulse adjustment table in the 99...

Here is the bin file and xdf I've been using.

I did copy all of the injector tables, including the small pulse tables. The small pulse tables for the poppet injectors are insane negative values. I see, so maybe the MAF value doesnt follow the actual airflow as closely sometimes. It makes sense to me that it could be doing some smoothing on the ...

Fuel pressure is 4 bar (4 bar bosch FPR in a Radium FPR housing, I have a pressure gauge permanently installed into the radium housing). I actually did have a dying fuel pump as well (who doesn't, in these trucks?) but that's sorted as well now. It is technically a returnless system, but the FPR is ...