The problem is that most 650 injectors flow <650cc. Do you have an AFPR to
finetune? If not, I prefer not to play around with the airflow compensation, but
use the deadtime instead if you can. What are your fueltrims doing? That is how
I like to tune the closedloop operation.
Jeff O.



--- In dsm-ecu@yahoogroups.com, "Kletke_A" <kletke_a@...> wrote:
>
> I've got a question.
>
> Here's the scoop. I'm running a 2g MAF, 650FIC's, fed from a Walbro 190. I
have properly compensated for everything. I've got the fuel map setup for about
11.0:1. But, when I do a pull a WOT log I get right where I want to be at about
11.5-11.8AFR all the way through. So, what I did was drop the global injector
compensation down from 650 to 637 to richen up my openloop map overall. Then,
took some MAF compensation out in the 0-100hz range to lean out the idle and
cruise.
>
> My question is since the MAF compensation in TunerPro only goes to 1600hz how
can I add fuel via the MAF comp scale above that level? Or does anything I add
to the 1600hz MAF comp scale affect readings higher than that? Since I'm pulling
about 2100-2200hz based on my logs.
>
> I'd really like to set the injector comp back to 650 and tweak my MAF comp
scale in order for my logged AFR and my fuel map to read the same.
>
> Any helpful suggestions would be appreciated.
>
> Thanks,
> Andrew
>