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 Post subject: Re: why you can't tune latency via the maf translation table
PostPosted: Thu Jan 14, 2016 1:10 am 
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RomRaider Donator

Joined: Tue Apr 29, 2014 12:48 am
Posts: 723
I had the same issue recently, wasted a lot of fuel and mileage on logging. Installed FPR and modified Fuel lines. Nothing Worked.

Then I replaced the MAF sensor by a new one. everything went back to normal +7 and -7 (Short term)

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 Post subject: Re: why you can't tune latency via the maf translation table
PostPosted: Thu Jan 14, 2016 10:54 am 
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Senior Member

Joined: Thu Aug 03, 2006 10:40 am
Posts: 1901
Kodename47 wrote:
ride5000 wrote:
ecuedit is far from perfect but i found it to be an amazing tool for analyzing and manipulating log data and incorporating those results directly into the rom.


This is why I suggested the above, it has most if not all of the benefits of Ecuedit but is free.


nice excel work!

the big difference is being able to navigate the surface of a map and have a separate window display data that fits that cell, but that's outside the scope of this thread (and more towards general map editing). i agree for the discussion at hand the method you've shown is absolutely equivalent.


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 Post subject: Re: why you can't tune latency via the maf translation table
PostPosted: Thu Jan 14, 2016 4:13 pm 
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Newbie

Joined: Wed Jun 06, 2012 10:11 pm
Posts: 25
ride5000 wrote:
so after reducing latency by 30us (1.16 to 1.13ms) and decreasing the injector scale 3% (from 650 to 630cc/min) i got the following data from the drive home...


(assuming 30us = 3%)... Just wondering how you came to the 3% decrease? (was that a value you got from ecuedit graphing, or just a trial and error?). And you decrease all the latency values for all voltages?

Did changing your injector scaling/latency have any side-effects (such as needing to re-do your MAF scaling?)


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 Post subject: Re: why you can't tune latency via the maf translation table
PostPosted: Sat Oct 14, 2017 7:49 am 
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Experienced

Joined: Fri Sep 02, 2016 4:42 am
Posts: 247
Location: Riga, Latvia
Hey ride5000,
I know it's been a while, but when searching for that perfect latency, what error across the mafV rows did you settle on and called it a day in the end? I assume it wasn't perfect 0% across all IPW for any given mafV?


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