C/L WB/WOT OEM ECUs...

[Bernd Felsche]

Garfield Willis writes:

>Now you're starting to put nearly as much smarts in that lil goiter
>that's fooling with the simulated stoich point, as you have in the OEM
>controller. So you're approaching the point at which you might as well
>just bite the bullet and create a custom controller, and dump the OEM
>brain-stem? Well, maybe not quite, but you getmedrift. Depends on how
>much you wanna play with the electrics.

That is the situation as I saw it. One "advantage" is that you
don't have to have intimate knowledge on how to drive the output
signals; but you will probably have to deal with a number of inputs
(other than O2) and massage them before delivering them to the OEM
ECU. At least on the fueling side.

The other advantage is that you only have to deal with the AFR in a
fairly lazy manner; i.e. there are no critical timing functions
related to the O2 sensor response.

Of course; you may have to deal with some of the outputs as well;
e.g. when the duty cycle is limited by the OEM tables and "safety
values".

Of course, I could be being pessimistic about it all...

-- 
Real Name: Bernd Felsche
    Email: nospam.bernie at perth.DIALix.com.au
     http://www.perth.dialix.com.au/~bernie - Private HP
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