Re: 16bit MAF xfer function in '165

[Peter Gargano <peter@ntserver.techedge.com.au>]

NickG wrote:
> 
> Has anybody modified the code in a '165 ECM to use a 16bit MAF xfer
> function?

I haven't, but I may be interested in what you're doing. What code base
(BCC, or ID byte, etc.) are we talking about?

> Currently, the stock MAF on the car maxes out at around 4000rpm.
> I'd like to install a unit that can measure up to 512gms/sec (@ 5v), but
> it'll require 16bits per entry in the transfer function in the ECM . Any
> ideas?

So, are you saying you have a MAF that gives a reading better than 8 bit
of resolution? Or are you just asking about scaling the reading from a new
MAF sensor, that gives a lower voltage than the existing MAF at the same 
flow rate, to use the existing tables?

Have you thought of going MAP?

Peter
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