[Diy_efi] Continuing the chip switcher "problem"

[mbelloli at speedymotorsports.com]

     What I'm  trying to do is have more than one choice of chip running
in the compute that drives the car.  I want to be able to switch
between chips on the fly.  Run the stock chip most of the time, but
when needed switch to a special purpose chips.  You could have one
with a different rev limit, high speed limit, base idle, etc,..  At
least on the Acura's I've been working with these things are easily
changed.  The chips out there, Mugen, Spooon, are in diagnostic mode.
 They disregard the o2 sensor, and run very rich.  If you run for
very long on them you'll foul the plugs, and the o2 sensor.  So
switch for a short run, and then back to stock.

Marcello





> Hi,
> I'm new to this forum and new to the subject of DIY EFI.  I also have no
> experience with PIC chips, my only microcontroller experience is with
> 89c52
> and variants.  I am interested to know what this (memory?) bank switching
> is
> all about and would appreciate it if somebody would be willing to
> enlighten
> me.
> Thank you,
> Murray
>
>> -----Original Message-----
>> From: diy_efi-bounces at diy-efi.org [mailto:diy_efi-bounces at diy-efi.org]On
>> Behalf Of mbelloli at speedymotorsports.com
>> Sent: Saturday, 12 February 2005 18:00
>> To: A list for Do-It-Yourself EFI
>> Subject: Re: [Diy_efi] Continuing the chip switcher "problem"
>>
>>
>>      I think I'm following what is being said.  Now here is a link to my
>> web page with all the info on my chip switcher.
>>           http://home.comcast.net/~hexibot43/ChipEnableLogic.htm
>>      I was thinking that I should be doing the switching during the time
>> that no read was occuring.  Now we're saying that I should do it
>> immediately after a read occurs.  Does that mean when I see the
>> moment of a read I immediately do my switch?  Whatever immediatley
>> means.  I'm hoping everyone will look at the waveform I'm seeing on
>> my Output Enable pin, and see if they can give me any insite.  I'm
>> very confused by it.  I swear it never gets near ground.  Help me
>> ObiWan your my only hope....Marcello
>>
>>
>
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>

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