VE Tables or AFR Tables..

Daniel Collins bossute at one.net.au
Sat Jan 27 09:07:00 GMT 2001


Nearly right Ross , the ecu only BLM when the ecu is commanded a
stoichiometric A/F (otherwise it ignores the o2 sensor) , when mapping I try
and set the whole A/F table to 14.7 then adjust VE,s so that the engine is
running in closed loop everywhere ( and BLM stay at 128) , then set the A/F
ratios for max power under high load conditions.

The ecu uses the lookup VE table in the fuel calculation
  BPW = voleff*catinv*mapkpa*bpwcon/afr

Daniel Collins
Downunder

-

>Hi All,
>
>In the calibration settings, there is the VE table and AFR table.
>How does that work?, do you set the assumed VE% to determine the INJ PW
then
>the AFR table is the value you hope to achieve? and the BLM Cells will try
>to achieve this value?.
>So for example if I set a very high VE% but set the AFR value to 16:1 the
>BLM's would be trying to pull a bunch of fuel out to achieve 16:1.
>
>Thanks,
>Ross Myers
>Melbourne, Australia
>E-mail : ponty at axis.jeack.com.au
>Stuff : http://www.jeack.com.au/~ponty
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>
>
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