UEGO IDEA

[Stuart Bunning]

Is the A/F ratio table found at xC4FA (ASBX) in my memcal responsible for
part of the fuel supply multiplications that would be experienced even with
a totally
flat VE table?  As my initial thought was if VE was flat it would lean out
as load or RPM increased. 

The map below (hopefully your font it right or it will look like @$#@# )
changes the A/F ratio
based on MAP and RPM ...

My guess is that the VE table tells the ECU efficiency and the A/F table
below tells the mixtures it will try to generate based on the VE table ?????

Everyone talks about VE tables and ignition tables.. So what are the other
A/F ratio table actuall used for. By looking at them it's pretty obvious
14.7 would = 14.7:1 air/fule ratio and at the right as load starts to get
high we want power so the mixtures get righer?? But How mathimatically soes
this contribute to adding additional fuel compared to the VE tables.

SORRY IF THIS HAS BEEN COVERED !!!

I guess I could/will burn a prom with a flat VE and flat A/F ratio table and
hook it to my bench ecu and see what the CRO says as I change the MAP
voltage or RPM slowly..


xC4FA		DC.B	16,0,9
		DC.B	140,147,147,147,130,130,130,130,130
		DC.B	140,147,147,147,147,147,147,130,130
		DC.B	140,147,147,147,147,147,147,130,130
		DC.B	145,147,147,147,147,147,135,134,134
		DC.B	145,147,147,147,147,147,130,130,130
		DC.B	145,147,147,147,147,147,130,130,130
		DC.B	145,147,147,147,147,135,130,130,130
		DC.B	145,147,147,147,147,135,130,130,130
		DC.B	145,147,147,147,147,135,130,130,130
		DC.B	145,147,147,147,147,135,130,130,130
		DC.B	145,147,147,147,147,135,130,130,130
		DC.B	145,147,147,147,147,135,130,130,130
		DC.B	145,147,147,147,147,135,130,130,130
		DC.B	140,147,147,147,147,135,130,130,130
		DC.B	140,147,147,147,147,135,130,130,130
		DC.B	140,147,147,147,147,135,130,130,130






>
>You won't go as lean as you think.  The MAP sensor is used to index into
>the VE map.  But it normally is also multiplied into the fuel
>calculation.  If you had a totally flat VE map, an increase in MAP would
>


Best Regards,

STUART BUNNING
SALES ENGINEER
KENELEC PTY LTD

23-25 REDLAND DRIVE
MITCHAM VICTORIA 3132
AUSTRALIA

PHONE:  61 3 9873 1022
FAX:    61 3 9873 0200
EMAIL:  stuart at kenelec.com.au
WEB:    http://www.kenelec.com.au/