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Awesome, great information. When tuning maf, would it make sense to use the dynamic airflow?

This helped me a lot:
https://forum.hptuners.com/showthread.php?39965-LSJ-Guides&highlight=Lsj+maf

So leave the pe table at 11.7 on a supercharged engine for safety,

and it seems that 30% meth injection at 250cc will show a .4 drop in afr 500cc drops it aprox .7 afr

running e10 91octane...

100% means the valve is closed, correct?

Very often it is an air bubble

I haven't been doing this, I will try it.

It keeps switching to the low octane chart and I am using Premium, aka 91.

(I have heard the 91 should be equivalent to the 93 octane, in Colorado? Is this B.S.?)

There is almost zero KR too,...

That makes sense. I assumed the codes wouldn't do that, I am formerly a Toyota 3SGE guy, I have ran Autronics standalone before, as we'll as the various boost controllers, maf tuners...etc but the...

Does disabling the codes stop thr ve table from accessing the temp sensor in the maf?

I also offer help but I am an LSJ guy. Let me know if you are still struggling.

Logging KR: "MAF cyl airmass 4cyl" Is this the correct one for the LSJ or should I use one of the other options ?

Exactly, I use the PE to adjust my AFR, (but I am, not an expert.)

I figured it is better than changing my VE or MAF settings, but I have seen other people do it through those.

I am trying a...

The GM Stage 2 injectors (42lbs/hr) say:

Flow...

I changed the cyl airmass to "MAF cyl airmass 4cyl" Is this the correct one for LSJ (2006 Cobalt SS) ?

I see some recommend using dynamic airmass, is that better?

newbie issues.

I am getting readings at .08 but nowhere else...

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I am having issues with not being able to see the KNOCK RETARD (airmass sensor) in my GRAPH, it shows up in CHANNELS and CHART.

Any clues? This is an LSJ engine.115870

Yeah it seems like not too many people know about them these days. I am running the 42lbs injectors, but they say DEKA on them, they came with my car, looking into larger injectors but I am afraid of...

Why not use a potentiometer (variable resistor) to be able to get at your exact ECT on the table ?

When doing meth tuning, use the PE table. This is what I found works best, and tune it with meth off first, for me, 500cc nozzle meth drops me .7 from 11.5 to 10.8afr

#3 - There is no difference, you get a percentage either way. My LSJ doesnt allow a commanded EQ so I use AFR and it works fine.

I would see what changing it does, when I fail my maf I use 300rpm enable and 200rpm re-enable/disable, I assume using 0 for both does the same? Maybe start with 2000rpm and 1900rpm and see if that...

Start a new thread, post your log file and tune file

I live in Colorado, just outside of Denver.

We have 3% less oxygen here (compared to sea level 18% versus 21%) and almost all our gas is E10 (probably 5-10%)

I beleieve the stoich for E10 is...

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I cant seem to get much better than 3% in some areas, any advice? Should I filter throttle pedal for more accuracy?



Here is step 2, I went ahead and multiplied by 1/2%.
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