O2 voltz

[Programmer]

Didn't see the original message, but ANY missfire ends up with a pulse wave
of extra unburned fuel (and 14 parts of raw O2 stoich) by the O2 sensor.
This lowers O2 voltage and increases injector pulse width. You end up EVERY
time there's a missfire with a rich running engine.

Hope this helps the explanation.

Lyndon IP TECH
-----Original Message-----
From: David A. Cooley <n5xmt at bellsouth.net>
To: diy_efi at efi332.eng.ohio-state.edu <diy_efi at efi332.eng.ohio-state.edu>
Date: Saturday, May 15, 1999 10:23 PM
Subject: Re: O2 voltz


>At 07:59 PM 5/15/99 -0400, you wrote:
>
>>Ok, please splain this statement.  O2 sensor voltage drops when spark
>>plugs fail to fire, and there's more HC present than when everything's
>>sparking normally.  Why the contradiction?
>
>My example was under conditions where combustion was actually happening.
>Voltage will drop with increasing O2, but under combustion conditions, the
>exhaust actually starts having more CO and HC as it get's richer and less
O2.
>===========================================================
>           David Cooley N5XMT           Internet: N5XMT at bellsouth.net
>     Packet: N5XMT at KQ4LO.#INT.NC.USA.NA   T.A.P.R. Member #7068
>   Sponges grow in the ocean... Wonder how deep it would be if they
didn't?!
>===========================================================