RE: TPI '165 pulling timing after Cold start

["Marteney, Steven J." <smarteney@xlvision.com>]

Any idea how it works?  Simple RC time constant?  Or is it hidden in a
"limp-home" chip somewhere?
Steve

-----Original Message-----
From: Ludis Langens [mailto:ludis@cruzers.com]
Sent: Thursday, July 20, 2000 6:47 PM
To: gmecm@diy-efi.org
Subject: Re: TPI '165 pulling timing after Cold start


"Marteney, Steven J." wrote:
> 
> Anyone know if the 165 ECM controls the 2 second fuel pump enable when no
> oil pressure is present?  where that may be in the code?

This is a built in feature of the ECM hardware.  There is no software
involved.  It is done in hardware because it needs to work in limp home
mode when the CPU is "out to lunch".

-- 
Ludis Langens                               ludis (at) cruzers (dot) com
Mac, Fiero, & engine controller goodies:  http://www.cruzers.com/~ludis/
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