PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

MAFLESS VE Tuning

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Old Sep 15, 2004 | 10:02 PM
  #21  
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ve table from the editor both primary and secondary
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Old Sep 15, 2004 | 11:49 PM
  #22  
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Originally Posted by HumpinSS
ve table from the editor both primary and secondary
Secondary only for the actual tune. Then I paste the rows to the primary, and between rows I divide the two numbers and insert the difference. It's the best we can do until we can use the primary table with the MAF unplugged.

Also, check out the HP Tuner forum. Somebody finally posted a Holden MAF table for us. It looks similar to what I was expecting. Might be worth a shot with a lid. I will try it in a day or so...too tired to put it in tomorrow morning's tune.
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Old Sep 16, 2004 | 08:48 AM
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Originally Posted by Another_User
Secondary only for the actual tune. Then I paste the rows to the primary, and between rows I divide the two numbers and insert the difference. It's the best we can do until we can use the primary table with the MAF unplugged.

Also, check out the HP Tuner forum. Somebody finally posted a Holden MAF table for us. It looks similar to what I was expecting. Might be worth a shot with a lid. I will try it in a day or so...too tired to put it in tomorrow morning's tune.

I actually do it backwards I modify the primary (even though I know it isnt looked at and the scanner is setup for the primary) and then copy to the secondary. My trims are comming around also. I did some logging last night and some tunning i will get a better feel for how well i am tonight. I may copy and paste those maf tables tonight jsut to see if i am able to plug it back up. Will post later to let you all know how it went
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Old Sep 16, 2004 | 08:58 AM
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im confused what table does what?? i thought the primary was mainly used and then the secondary was a backup or something? please clearify
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Old Sep 16, 2004 | 09:16 AM
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On cars with both tables the primary is used for sanity checking. If the MAF fail then the secondary is used. In later model years the primary table (only one) is used for both.
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Old Sep 16, 2004 | 09:17 AM
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Could one of you two tell me which VE tables (specifically) you're tuning with, and why? I'd like to have a pretty good handle on what needs to be done when we get the free time to do this.

Okay, got the why from the other posts... The tables you're modifying are VE vs. ??
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Old Sep 16, 2004 | 09:22 AM
  #27  
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Both Another_user and I are using the secondary ve table (98-00). Keep in mind after 00 they may have gotten rid of it in which case you will tune the primary table.

If you have HPTuners and you see two ve tables when you disconnect the MAF the PCM will use the second table

If you see one table when you disconnect the MAF it will use the primary

There are two VE (Volumetric Effieciency tables) Primary and secondary

UNDER NO CIRCUMSTANCE ARE YOU TO DISCONNECT THE MAF IF YOU ARE RUNNING AN AUTO
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Old Sep 16, 2004 | 10:07 AM
  #28  
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UNDER NO CIRCUMSTANCE ARE YOU TO DISCONNECT THE MAF IF YOU ARE RUNNING AN AUTO
ive never heard that before.. why so? me and smokin both have 98 autos
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Old Sep 16, 2004 | 10:07 AM
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I don't see a secondary table and I have an automatic
so I guess I'll just keep on spectatin'. Being as I also
have not seen nearly the trouble you guys are having,
and seen VE adjusts push properly on my low-end trims.
There's something really screwy about all this. Like we
all live in different worlds. Maybe it's the early / late
model thing.
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Old Sep 16, 2004 | 10:10 AM
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Originally Posted by nitrousfed
ive never heard that before.. why so? me and smokin both have 98 autos

The pcm uses your MAF sensor to apply tranny line pressure. with it disconnected you will command full pressure to the tranny at all times and burn out the pump. Another_user and I are stick cars so we can get away with it
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Old Sep 16, 2004 | 10:11 AM
  #31  
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Originally Posted by jimmyblue
I don't see a secondary table and I have an automatic
so I guess I'll just keep on spectatin'. Being as I also
have not seen nearly the trouble you guys are having,
and seen VE adjusts push properly on my low-end trims.
There's something really screwy about all this. Like we
all live in different worlds. Maybe it's the early / late
model thing.

You have an 01-02 by that time they did away with the secondary table. We both have decent sized cams with a good bit of overlap and that may be the reason why it seems we live in different worlds
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Old Sep 16, 2004 | 10:13 AM
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so then my question is... what do u think the best way we can tune our cars is? can we still make decent adjustments to the ve with maf???
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Old Sep 16, 2004 | 10:25 AM
  #33  
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Yes you can, whether you are succesful or not is a different issue.

Are you cammed?

I have a few more things i want to try before i rule the maf out so give me a few days
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Old Sep 16, 2004 | 10:29 AM
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cool well me and smokin tune together so heres the factors... he is highly modded..cammed.. and im basically stock non cammed.. so ideas on both would be nice..
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Old Sep 16, 2004 | 10:39 AM
  #35  
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You will prolly see your ve push more than his when you all start to tune... try it out and see
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Old Sep 16, 2004 | 11:50 AM
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Originally Posted by HumpinSS
The pcm uses your MAF sensor to apply tranny line pressure. with it disconnected you will command full pressure to the tranny at all times and burn out the pump. Another_user and I are stick cars so we can get away with it
Yup, only time you can do it on an auto is if you have a vacuum referenced tranny like the FLP Level IV.
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Old Sep 16, 2004 | 01:37 PM
  #37  
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cool ill post up the results
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Old Sep 16, 2004 | 01:53 PM
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Originally Posted by HumpinSS
The pcm uses your MAF sensor to apply tranny line pressure. with it disconnected you will command full pressure to the tranny at all times and burn out the pump. Another_user and I are stick cars so we can get away with it
Just when I thought things might get easier..
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Old Sep 16, 2004 | 07:27 PM
  #39  
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Trim histogram of the day.
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Old Sep 16, 2004 | 07:42 PM
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Well, I don't think I am going to get any closer with only a secondary table to tune with. Here is the VE table I am using for anybody that wants to take a look at it. It is for a vehicle with the mods you see below. Use at your own risk.

The edges may need to be cleaned up a little, there are a few cells I couldn't get to, like some of the 400 rpms. FYI, I started with a 2002 Z06 VE table to build this.
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