It runs now! (pulls liike a beast too)

[christer.medin at lennoxintl.com]

Aha, I learn something new every day. :^)  I guess some more reading of the manual is in order... even though the Haltech manual could've been a little better. Thanks!

Christer

----------
From: 	MIME :n5xmt at bellsouth.net
Sent: 	Monday, June 21, 1999 12:03 PM
To: 	gmecm at efi332.eng.ohio-state.edu
Subject: 	RE: It runs now! (pulls liike a beast too)

Actually, it's a function of the ECM from what I was told... The O2 sensor
function is a curve like so:

             ----------------
            /
           /
          /
         /
---------

There is a bit more curve on the upper and lower ends, but not much...
Basically the voltage change thru stoich is a sharp change (basically the
middle vertical slope).  For the output voltage to swing, the mixture needs
to cycle rich/lean (referenced to stoich) which is what stock ecm's do...
If they held the mixture constant, and tried to get a constant voltage out
of the O2, they would set a trouble code, as the voltage swings are what
flag the software as being a good sensor.
=========================================================== David Cooley N5XMT Internet: N5XMT at bellsouth.net Packet: N5XMT at KQ4LO.#INT.NC.USA.NA T.A.P.R. Member #7068 We are Borg... Prepare to be assimilated! ===========================================================