Changing 165 fuel delivery was "General tuning question - fue l economy"

[Marteney, Steven J.]

Hmm, now I'm confused.  I would think telling the engine you have bigger
injectors would tell it to fire them less, delivering less fuel.  The
decrease in the BLM then means that the engine saw it was rich and decided
to pull fuel out.  I must understand how the ECM interprets the injector
constant and how it judges what to do with the pulse width.  (Trying to take
a logical route.)  Keep in mind I haven't tried anything YET, I'm just
trying to learn.

Steve

-----Original Message-----
From: Squash [mailto:realsquash at yahoo.com]
Sent: Thursday, June 15, 2000 2:02 PM
To: gmecm at diy-efi.org
Subject: RE: Changing 165 fuel delivery was "General tuning question -
fue l economy"


I *lowered* the injector constant (which means bigger injectors) in the aujp
by 20% and got a 20%
reduction in most BLM cells.  It prolly works the same way in a 165.

Squash

--- "Marteney, Steven J." <smarteney at xlvision.com> wrote:
> On the injector flow rate, I had thought of telling it I had smaller
> injectors than I really do.  Seems that would fire them longer, but I'm in
> the dark.  Thought I would try it and see what happens.
> Steve
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