I own Tunercat and definition files 32b for my stock ABWT chip and 6e for the ARAP chip. My fuel pressure is adjusted correct for my injectors, but my BLM's are still high (lean). I have been told I need to adjust the upper and lower VE tables to achieve 128. The tables I was told to look for are labeled something like...

"VE vs. RPM vs. MAP kpa"

However I have been unable to fine any table labeled like this in my definition files.

Next:

Do I need to record my BLM value at different fuel cell numbers, then make the corrections in the tables? The formula given to me to use...

BLM reading/128 X Fuel Cell #

Then to modify the corresponding table.

 

That's because your car is MAF. MAF cars don't have VE tables. You were misinformed. Only Speed Density cars have VE tables. Welcome to MAF

Tim

 

Tim,

Tunercat wrote back and said the same thing, they said all I can do is to set my injector constant and then adjust the following table...

"BPW vs. Load vs. RPM"

To acheive BLM's of 128. Maybe you can answer this question, is it desired or possible to maintain 128 from idle up to 4000 rpm's?

 

In theory, up to 4800 yes.

 

mine seem to mutate from 126-132. i cant seem to get them at 128 all the time. if at 128 after data log. next datalog seems to move a bit on its own. i assume temp of environment plays a role. close enough.

 

delete

 

126-132 BLM is pretty darn good if you ask me. They will jump around a little due to engine load, temperature, timing, etc.

 

You also probably have the "jump" setting at 2 where the BLM updates by every 2 meaning all even numbers. Set that to 1 and have the INT reset on BLM cell change AND BLM change. That'll help you fine tune it.

 

that (MY) post was a screwup. i did not intend to post there. POI is that with XRam they would swing (mutate) more often that with Holley Projection. when i pulled plugs on Xram they were 4 perfect and 4 rich. that was a year ago when i swapped manifolds. the Holley unit appears to have the disribution issues covered and BLMs report more consistent. i did see them all swing fron 126-130 up to 136 with a environmental rtemp change of 20 degs F. i am running OL and that did not help my tune!

 

i'm reading up on all 12 posts i can find related to the ABWT bin, and 32b. i saw what jprevost posted as far as jump settings on blms and int, looking in my xdf i have no such settings, is this an adjustment made in the raw hex and what is it? my fueling is almost this close but my int is jumpy as expected on a maf car, this change would be good i think.

reading is good by the way, took me a week to figure out that all the 32b temps are in celsius not f*.

 

bump