View Full Version : MAFless??????
Rvettej
October 10th, 2008, 02:18 AM
I was wanting to know is it possible to run without the MAF in NON-Turbo,supercharged,etc. applications? If so are there any benefits? Also in MAFless applications what do you do with the wire from the MAF?
ringram
October 10th, 2008, 03:47 AM
Yes definitely. Most Oz blokes run mafless on stock setups.
Do a google as its a minefield of arguments. But the main one is it allows a better intake without MAF packaging restrictions.
Just tape off the MAF connection unless you need to pull 2 wires from the IAT feed in it.
roy
October 10th, 2008, 03:51 AM
Mafless is working wonderful for me .
joecar
October 10th, 2008, 04:19 AM
Ditto here.
Disable the MAF (see AutoVE tutorial) or remove the signal pin from the connector using a pick (you still need the IAT signal)...
engine show still run (throws one of P0101, P0102, P00103 indicating SD mode now)... you may need to tune the VE table if you want it to run good.
Rvettej
October 12th, 2008, 06:23 AM
Thanks everyone for the feedback. I tried it out and it worked for me but I'm still having a few problems, I printed off some info for the tuning of the VE table (such as the AutoVE Tuning Tutorial) and running SD mode but I can't locate the Main VE table {B0101} and several more that I can't find. Is a Wideband O2 required to tune the VE Table?
joecar
October 12th, 2008, 07:53 AM
What OS are you using...?
In the tunetool's search box enter B0101 (using uppercase B) and press ENTER.
ScarabEpic22
October 12th, 2008, 10:19 AM
First off, what car and engine are you running? If you have an E40, E38 or E67 ECM then you wont have a Main VE table, you will have a Virtual VE table (plug your V2 into your pc then open the tune tool).
joecar
October 12th, 2008, 02:15 PM
Good point.
Rvettej
October 14th, 2008, 04:41 AM
Its a 2007 Corvette with the 6.0
Rvettej
October 14th, 2008, 04:44 AM
With the E38
GMPX
October 14th, 2008, 09:15 AM
Ah, the tutorial you are reading is aimed at the LS1.
As suggested above there is one for the E38, look in the Tune Tool help menu under tutorials for 'Virtual VE Tutorial'. Whilst the concept is the same, the way the VE table is changed is different to the LS1.
Also, please see this thread -
http://forum.efilive.com/showthread.php?t=8961
Cheers,
Ross
Rvettej
October 16th, 2008, 02:23 AM
Thanks GMPX I will check it out.
5557nut
June 5th, 2021, 02:07 AM
The "Virtual VE Tutorial" is no longer revalent. It was written in 2007.
Yes principle is sorta the same but table references are wrong and the newer tune version has different options/descriptions.
Why can't these tutorials be updated?
Highlander
June 23rd, 2021, 11:08 AM
The E38 is a different animal when in VE. There are a few of the dynamics variables that are not used when in VE and changes quite a bit the fueling. You need to keep this into account.
5557nut
June 24th, 2021, 11:20 PM
Thanks Highlander, I agree...but still that's even more reason to update/create a tutorial for the E38 VVE. Seems like there is enough discussion to warrant a tutorial. I know the LS1 was much easier ( as related to the LS3) to tune, but there are a lot of 2009-2014 being modified. Is it we don't have enough knowledge base to create the tutorials like they did for the LS1? I do appreciate whats out here but there are still to many references to the LS1 tables making it hard for 2009+ users to understand. Then there is the conflicting explanations I run into that make it more confusing but I know there will be those discussions because of the level of understanding.
I am still gonna keep digging and trying to learn this E38 ecm. Thanks to all for the help!
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