Probably the biggest problem with any O2 sensor is knowing what the
actual voltage it is generating and what voltage the lights are triggered.
The next problem could be has the O2 sensor aged and changed Vout, have
components of the light bar changed and they trigger at a different Vin.
You almost have to certify the system every few year to understand the
readings. You also have to know what these voltages really mean.
Ron Fraser
-----Original Message-----
From: tigers-bounces@autox.team.net [mailto:tigers-bounces@autox.team.net]
On Behalf Of Smit, Theo
Sent: Thursday, June 20, 2013 12:44 PM
To: Jay Laifman; tigers@autox.team.net Den
Subject: Re: [Tigers] Odd advice from Edlebrock
Hi Jay,
If you're reading rich, then you're using up all the available oxygen by the
time the fuel/air charge hits the O2 sensor, and there is in fact some
unburnt fuel left. I can't see how getting the combustion going earlier
would help that.
Earlier combustion would give you lower exhaust temperatures, but I'm not
sure how that would help your O2 readings either.
I'm using a PLX wideband O2 sensor... you get much more direct information
than what the earlier narrowband O2 sensors will give you, and they're not
that expensive anymore. I have my gauge stuck where the ammeter usually goes
so it's easily readable, with some silver tape wrapped around the bezel to
dress it up ;)
Theo
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