heated O2 sensor number for 350 TBI truck?

[Bruce Plecan]

Why not just use a gm 3 wire?.
On the gn ttype list they have an archives, and you can read about some of
the 3/1 wire problems they've had.  IMHO, just do it right once with a gm 3
wire.
Unless you have a WB O2
Bruce


| I tried converting my 383 TBI truck to a bosch 12009 O2 sensor with
disatrous
| results.  I have since found that it is for 88-90 AMC products - so you
just
| know there has to be something wrong with that.  I believe it works
0-400mV,
| not 0-1.0v like the factory GM sensor.  The heat is on a relay driven by
the
| fuel pump relay - so it has power whenever the engine is running.  It came
up
| with a value in only about 15 seconds - but it started at 100mV and never
| went over 250mV at WOT. - So it went immediately into closed loop and
started
| adding fuel.  Once it got to 160 on int and BLM it went open again since
the
| number was obviously bogus.  Really bad driveability and mileage.  Took it
| out after a half hour of checking other things, connections, etc.  Put the
| original one wire sensor back in and everything was peachy.  Ok now - what
is
| the number for the Bosch sensor I do need that has the same parameters as
my
| stock one wire?
| Also tried changing from 160 therm to 180 therm with 1/8 hole drilled in
it.
| Runs fine - but can see 1-2 deg retard at wot around 4500 - can't hear any
| knock - is this acceptable?
| Thanks for your help
| Ryan Hampl
|