Boost Fuel Limiter

[relay93]

When at idle we know that the data log shows 14.7 and this will also show up on the tune with the runway high lights. In my data logs I know that 18 psi of boost reflects 32 psi on the tune. Would it be beneficial for better low boost fuel control to rescale the axis to where 0 boost or 14.7 absolute is more to the left when looking at graph F0502.

Thanks.

[2007 5.9]

Yes, I rescale my pressure axis to represent actual boost. The cal-link isint perfect, but if you understand that the log will follow actual boost it will make more sense.

[skneeland]

When at idle we know that the data log shows 14.7 and this will also show up on the tune with the runway high lights. In my data logs I know that 18 psi of boost reflects 32 psi on the tune. Would it be beneficial for better low boost fuel control to rescale the axis to where 0 boost or 14.7 absolute is more to the left when looking at graph F0502.

Thanks.

I too rescale this axis for better fine tuning.

On a side note, i didnt think the cal-link worked for this table (at least it never has for me, in fact it doesnt on my fueling tables ,and a few others, either)

[Ghostman]

I'm trying to understand this a little better. So when I look at "fuel limiter, boost" (A9317), is the "BOOST" scale absolute or gauge?

[Ghostman]

I'm trying to understand this a little better. So when I look at "fuel limiter, boost" (A9317), is the "BOOST" scale absolute or gauge?

Well I logged the truck with the "boost" pid selected and it must show absolute psi not gauge. So I'm guess the fuel limiter, boost table reads in absolute psi also then.

[2007 5.9]

With csp eda pids, boost is psig, and so is the axis in the table

[Ghostman]

Hmm well I have a csp tune and I thought I used a eda pid that was boost. I'll check it again tomorrow and post a screen shot. Thx.

[Ghostman]

Ok I see now there are two different boost pids, one says gauge after it. I had the wrong one selected. Thx!