Honda Car Forum

any reason not to buy an aftermarket O2 sensor over the factory O2
sensor? tia

Denso universal is pretty darn cheap and, since it is OEM,
you can count on it, too.

I bought one from Amazon recently and am satisfied. A few
years ago I bought an exact fit one from
www.automedicsupply.com at a great price, too. (These were
for two different Hondas.)

Aftermarket O2 sensors do not have a good reputation, from
my general reading.

"z" <gzuckier@snail-mail.net> wrote
> any reason not to buy an aftermarket O2 sensor over the
> factory O2
> sensor? tia

On Sep 15, 11:56*am, z <gzuck...@snail-mail.net> wrote:
> any reason not to buy an aftermarket O2 sensor over the factory O2
> sensor? tia

Typically your options are a universal fit sensor and an OEM
replacement. The main difference in my experience is the OEM
replacement has the correct plug already attached, and it costs twice
as much as the universal fit sensor. The sensor element itself is the
same AFAIK.

In the case of a 4 wire O2 sensor, the 'universal' fit sensors will
usually come out of the box with...4 wires hanging loose. You get to
wire it up yourself, which if you are handy with a soldering iron and
shrink tubing you can do a professional R&R job in 20-30 minutes time
and save yourself some money. Or if time is more important, buy the
OEM version, and then you just unscrew the old one, screw in the new
and connect the plug.

Chris

On Mon, 15 Sep 2008 11:56:11 -0700 (PDT), z <gzuckier@snail-mail.net>
wrote:

>any reason not to buy an aftermarket O2 sensor over the factory O2
>sensor? tia

If it says Bosch on the box leave it there.

Steve B.

Steve B. <none@none.com> wrote:
>On Mon, 15 Sep 2008 11:56:11 -0700 (PDT), z <gzuckier@snail-mail.net>
>wrote:
>
>>any reason not to buy an aftermarket O2 sensor over the factory O2
>>sensor? tia
>
>If it says Bosch on the box leave it there.

Why? My car came with Bosch sensors originally, why should I use
anything different?
--scott

--
"C'est un Nagra. C'est suisse, et tres, tres precis."

Don't buy Bosch. Bosch OEM and Bosch aftermarket may be made by
different vendors, even for the same application. That's been beaten to
death on the Mopar forums over the years, and unless something's changed
in the last year or so the failure rates (including bad out of the box)
are very high in Bosch aftermarket sensors.




Elle wrote:
> Denso universal is pretty darn cheap and, since it is OEM,
> you can count on it, too.
>
> I bought one from Amazon recently and am satisfied. A few
> years ago I bought an exact fit one from
> www.automedicsupply.com at a great price, too. (These were
> for two different Hondas.)
>
> Aftermarket O2 sensors do not have a good reputation, from
> my general reading.
>
> "z" <gzuckier@snail-mail.net> wrote
>> any reason not to buy an aftermarket O2 sensor over the
>> factory O2
>> sensor? tia
>
>

Scott Dorsey wrote:
> Steve B. <none@none.com> wrote:
>> On Mon, 15 Sep 2008 11:56:11 -0700 (PDT), z <gzuckier@snail-mail.net>
>> wrote:
>>
>>> any reason not to buy an aftermarket O2 sensor over the factory O2
>>> sensor? tia
>> If it says Bosch on the box leave it there.
>
> Why? My car came with Bosch sensors originally, why should I use
> anything different?
> --scott
>

Because the ones Bosch sells to the aftermarket are NOT NECESSARILY made
in the same plant or to the same design as the ones they sell to auto
manufacturers. The Bosch aftermarket replacements, even when labelled as
OEM replacments, tend to have a much higher failure rate.

On Sep 15, 2:56*pm, z <gzuck...@snail-mail.net> wrote:
> any reason not to buy an aftermarket O2 sensor over the factory O2
> sensor? tia

while i'm on the subject:

i'm just winging this repair, so does this sound like not too
halfbaked a diagnostic:

driving the honda civic during a horrible rainstorm. splash through a
giant puddle in the dark. car runs fine. run my errands, go home. car
still runs fine. next morning, car sounds like motorboat, like it's
missing half the time, but regularly. drive it around a bit; it misses
at low rpm, misses at higher throttle; but at just over idle, doesn't
miss. doesn't miss while coasting, but i doubt that it's feeding fuel
then. occasional bang through the tailpipe, which i figure means fuel
is getting through but not igniting. won't go to VTEC mode. i suspect
this is limphome mode; on the lean side, too lean to ignite
sometimes? because the O2 sensor isn't contributing?

bottle of gastank water remover i had around doesn't help, blow-drying
ignition wires doesn't help, leaving it in the hot sun for a week
doesn't help. definitely spark coming through each ignition wire,
using inductive tester. dist. cap looks fine. wires not loose.

relevant factoid: this is a B16 engine, which apparently sticks the
O2 sensor way down the exhaust pipe under the car just before the cat
if the drawing inn the manual is right, unlike the d16s where it's
much higher up the manifold. meaning that the O2 sensor on my B16
must have got splashed good. but is that something that would kill
an O2 sensor? this can't be the first time it's gotten splashed (fun
fact: the check engine light hasn't lit. )

given the reasonable level of investment of time, effort and cash
involved in just replacing the sensor, which compares favorably with
the level of investment of time, effort, and cash involved in getting
it to a real mechanic (and noting that "real mechanics" even good ones
haven't been exactly perfect at diagnosing past illnesses), i'm not
averse to giving the sensor replacement a shot before giving the
mechanic a shot, unless the collective wisdom here insists that it
can't possibly be the O2 sensor and it isn't even worth trying....
??? thankx.

On Tue, 16 Sep 2008 14:56:45 -0700 (PDT), z <gzuckier@snail-mail.net>
wrote:

>On Sep 15, 2:56*pm, z <gzuck...@snail-mail.net> wrote:
>> any reason not to buy an aftermarket O2 sensor over the factory O2
>> sensor? tia
>
>while i'm on the subject:
>
>i'm just winging this repair, so does this sound like not too
>halfbaked a diagnostic:
I would be surprised if this turned out to be an O2 problem. Sounds
more like an ignition problem, especially with the puddle in the
picture.

Steve B.

z <gzuckier@snail-mail.net> wrote in news:20096c7c-c6c8-4d63-acd6-
d79686b6a316@w7g2000hsa.googlegroups.com:


>
> relevant factoid: this is a B16 engine,



As in '80s Accord or Integra?

If so, the sensor is in the manifold, right behind the radiator.

--
Tegger