[V8] Fault code 2341

John Bysinger john at bysinger.net
Fri Apr 15 13:00:44 EDT 2005

Reason we tested this one, is the ford part was $120 through the local parts
shops, and $140 from the dealer...  didn't make sense to me either, with
ford being a dime a dozen you'd think the o2 would be cheap as well

-----Original Message-----
From: v8-bounces at audifans.com [mailto:v8-bounces at audifans.com]On Behalf
Of DasWolfen at aol.com
Sent: Friday, April 15, 2005 6:08 AM
To: V8 at audifans.com
Subject: Re: [V8] Fault code 2341

In a message dated 4/14/05 11:58:11 PM Eastern Daylight Time,
john at bysinger.net writes:

> I'm not sure on the V8 02
> sensor how many leads there are, but there's usually either 2 or 4 leads
> them.  In my experience you want to pay attention the the grey and black
> leads if there's more than 2, connect them up to a volt/ohm meter set to
> volts.  Just sitting there it should read out a nice zero.  Set the o2
> sensor in a bench vise or some other sturdy mounting, and heat up the
> until it's glowing like a cherry with a propane torch or similar (you
> hurt it, it's used to these temps) and check the voltage again.  The
> of the torch should be using up all the oxygen around the sensor and the
> volt/ohm meter should read just shy of 1 volt.  If you're not getting that
> much voltage, or no reading at all, check the leads and try again, if it's
> still low or no voltage, time for a new 02 sensor.

 V8's use 3 wire sensors....2 white for the heater circuit, a single black
for signal. I suggest upgrading to a 4 wire sensor using BOSCH ONLY!!!!,
preferably one with the same 3 slot tip as the stock V8 sensor.

 The details of testing an O2 sensor is "nice to know" info, great classroom
material.... but considering they should be changed every 60k miles, are not
that expensive, and can be a B*tch to remove.....why on earth would you
testing one and then reinstalling afterwards?

 As I stated...let the car test it....unplug the black signal wire. If the
sensor is the issue the problem goes away....if the FPR is at fault it will
running rich.
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