On Wed, 4 Nov 1998, William Blount Arthur wrote:
> Have any of you tried the A/F ratio measuring devices sold in summit or
> Jegs. K&N makes one as does MSD and Edelbrock. They cost about $130 to
> $170 and put another O2 sensor in the tailpipe. Thats what you R/T guys
> need (why not, you already have 4 or so) I guess my truck is smarter
> since it only needs 2, but not as smart as the pre '96 which only need 1
> or the real old ones that just go freestyle. I was thinking that this
> monitor might be useful for people who wanted to see if it was running
> lean or rich or what.
>
From what I've read, they don't really work (to determine the A/F ratio).
In order to determine the A/F ratio, you need a sensitive o2 sensor. The
devices above selling for $100-200 use a "plain jane" o2 sensor, or
in some cases, connect to your stock sensor. The kind of sensor you'd
need to actually read the A/F ratio costs about 10 times that. However,
a normal O2 sensor WILL tell you wether the engine is lean or rich, so of
that's all you're looking for, the above should work OK. If you need to be
able to see the actual ratio though, don't waste your money.
There's some more info about this at:
http://www.eskimo.com/~dalus/bmw/all/engine/all_o2sensor.html
There's a lot of info on that page, but its in there somewhere. :-)
-Jon-
.--- stei0302@cs.fredonia.edu ----------------------------------------.
| Jon Steiger * AOPA, DoD, EAA, MP Race Team, NMA, SPA, USUA * RP-SEL |
| '96 Dodge Dakota v8 SLT CC (14.58@93.55), '96 Kolb FireFly 447 |
`--------------------------- http://www.cs.fredonia.edu/~stei0302/ ---'
This archive was generated by hypermail 2b29 : Fri Jun 20 2003 - 12:10:58 EDT