MAF & base fuel tables

[Jon Fedock]

Ah Ha! Who is going to try it? I have an extra MAF from a six cylinder
Camaro and ........Hmmmmmm....
Jon Fedock

-----Original Message-----
From: Knowlden and/or Eller <ke at clark.net>
To: gmecm at efi332.eng.ohio-state.edu <gmecm at efi332.eng.ohio-state.edu>
Date: Tuesday, June 22, 1999 10:32 PM
Subject: RE: MAF & base fuel tables


>Bruce, Jon, after looking at byte 14 bit 2 (analog vs fm digital, I am set
>for analog and so are you Bruce), I noticed byte 16, bit 6 "Calc Base Inj
>PW, not table" (Bruce and I both have this bit a 1) and this tells me there
>is an option and that probably my vette's base PW is calculated. Of course
>this gives the challenge of where is the calculation and its variables. By
>the way, after little more looking at the MAF tables they are set up to
work
>with either FM digital or analog. There are multiple tables and they are
>scalar i.e. table 1 0-22 gps, table 2 22-47 gps, etc. It looks like "all"
>you would have to know is  the freq/volt vs air flow in grams per second.
>
>I feel like I am on treasure hunt.
>
>Regards,
>
>Bob
>
>-----Original Message-----
>From: owner-gmecm at esl.eng.ohio-state.edu
>[mailto:owner-gmecm at esl.eng.ohio-state.edu]On Behalf Of Ward
>Sent: Tuesday, June 22, 1999 3:20 PM
>To: gmecm at efi332.eng.ohio-state.edu
>Subject: Re: MAF & base fuel tables
>
>
>Probelbly a very good objective, but you will need to generate new tables
>since the flow values are different.
>Ward
>
>On Mon, 21 Jun 1999 18:51:11 -0400, Jon Fedock wrote:
>
>>
>> -----Original Message-----
>> From: Knowlden and/or Eller <ke at clark.net>
>> To: gmecm at efi332.eng.ohio-state.edu <gmecm at efi332.eng.ohio-state.edu>
>> Date: Sunday, June 20, 1999 6:29 PM
>> Subject: MAF & base fuel tables
>>
>>
>> >Bruce, thanks again for the acyc.bin from your '87 IROC. I have become
>VERY
>> >fluent in promedit. What I have discovered is that my memcal apyp (89
>> vette)
>> >has no base fuel table. Really, I am sure (as sure as a novice can be).
>I
>> >would like to know what type of MAF your IROC has. My vette has a Bosch
>> >analog hot wire (more voltage output more air)but gm has there own,
Delco
>I
>> >& II, and they have used a Hitachi. Both the Delco and the Hitachi have
>a
>> >frequency output (the higher the frequency, greater the count, the more
>> >air). The '86 disassembly from ecmguy (what a godsend) would accommodate
>a
>> >frequency based MAF (although the MAf tables appear to be in volts!?). I
>am
>>
>>
>> I have asked this question before - I was going to try using a new-style
>> "high flow" MAF (they are frequency type). But, as with ALOT of other
>> projects, I have  put it on the back burner. If you find out about using
>a
>> frequency-type in an analog setup, PLEASE let me know. I suspect that all
>> you have to do is change the bit at 014, but very seldom is anything that
>> simple......Good Luck
>> Jon Fedock
>>
>>
>
>
>
>
>
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