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In case this helps someone in the future, it looks like it is: [(g/cyl)*(K)]/kpa

What are the VVE units in an e67 ecm, hp tuners v3.4? I'm seeing values from 100 to 2500. These numbers would make sense if I divided them by 1000. I'd like to start tuning this from a base map...

Hey Clay,

I tried to open the files tonight but its on an updated version of hptuners that I haven't done yet. I do have it installed on another computer so I'll try on it tomorrow.

Here is...

Ya I'm 95% sure I have an air leak. Moved all those parameters to try and command a ETC=8%, but I was told 12 is normal at idle, so it must be an air leak.

What setting controls ETC at idle? It seems my idle airflow minimum is below what it is running. I read idle ETC should be 8%, but I'm logging higher and the idle is high.

Thanks!


59256...

Ya, I wasn't sure if the glowing headers is from ignition or cam overlap.

I've added fuel and the rpm just increases but I'll try that with the timing like you say.

It is logging desired rpm...

Need some help with the idle.

It is basically the same MAF/VE tune as before with new injector data, new IAT curve, new MAP curve. The idle indicates lean, when fuel is added RPM goes up and...

Chris you are the man!!!!!! I found the setting. Thank you so much, I have so many hours trying to find that setting and frustration.

Please see the pictures. Any advice on how to tune this out?

Thanks in advance!

Thanks! You wouldn't happen to know the equation for the blend would you?

Also is there a way to run straight VE then blend then maf?

Thanks Chris!

I'll give it a try and research some more.

On a stock GM tune, how is the airflow calculated or is there a reference I can read on it? It appears to be straight VE map until...

Does anyone have an idea what could be causing the throttle to fluctuate uncommanded? See the screen grab where it is a steady 20 then dips to 16 and back.

78# injectors scale 1/2
ls3 maf...

Does anyone have a scaled maf e67 tune that I could compare to my own tune? When I scale the maf enough to get the top end resolution needed I hit some kind of commanded e-throttle fluctuation. I...

42863

This one is closed loop I guess, but I had the fuel trim learn off in the VCM controls tab.

I don't really understand it.

Thanks in advance for any input.

4286142862

Here you go.

The maf and fuel injectors are both scaled 1/2. After this I went back and scaled the maf by 3/4 since I won't see the upper section of the frequency range. Doing that...

Hi, I new to this stuff. I'm working on a 07 LS2 cstv, magnacharger, 78# injectors and now an ls3 maf. Its a maf only tune so far. I had the tune great with the injectors scaled, then installed...

Thank you!

I installed these injectors: http://www.deatschwerks.com/products/fuel-injectors/bosch-ev14-universal-line/8-cylinders-ev14/long-60mm-ev14-8-cylinders/18u-00-0078-8-detail

On a magnacharged 2007...

I am having the same error as sssnake, also on a 2007 ctsv.

sssnake, is there anything obvious I am missing?