The way an O2 sensor works is this: There's either an air intake in the
body, top or the sensor, or harness. Air is sampled through the intake and
resistance changes. O2 sensors don't check for fuel...they check for air
(O2). The harness does contain wires (obviously), but the clearance inside
the harness can be "loose" to allow air to travel through it - four wires
can have enough clearance in the harness for the air to be sampled. About
80% of the sensors use the body (which is why you don't want to get them
caked full of mud, oil, road tar, etc).
Remember: Fuel is NOT checked by the O2 sensor....AIR is. (Lack thereof or
abundance)
- Bernd
-----Original Message-----
From: Zito, James A (GE Infra, Energy) [mailto:james.zito@ge.com]
Sent: Thursday, October 04, 2007 7:53 AM
To: Dakota list (E-mail)
Subject: DML: RE: Replacing O2 sensors on 2001 3.9L V6
>From Bernd:
Stay away from "universal" O2 sensors that require you to cut/crimp your old
connector into the new one. Reason for this is that the newer style O2
sensors use the wires as an air passage for O2 measurements. Plug it and
you'll get either incorrect readings or a check engine light.
HUH?? I just can't visualize what you're trying to say here. To paraphrase
Curly Howard, Hey Moe them wires is full of copper!!! So how does air get
down them? Also is it using this mysteriously penetrating air as some sort
of a reference or what?
Jim
universal Bosch O2 sensor on his 03 Dak that is missing 2 pistons
This archive was generated by hypermail 2b29 : Thu Nov 01 2007 - 00:07:06 EDT