[V8] More o2 sensor woes...

[NIck Miller]

Oh, I guess telling you guys what I've done so far would help, sorry for
that slip.
     New spark plugs, Autolites.  Tested all spark plug wires and they are
all within spec.
     Have one new Dizzy cap/rotor, the other one looks near new.
     The vac lines all appear to be in great conditions, removed the large
ones from the car and inspected.

Other than that, I am working on testing it in car, and will finish that
tomorrow.  It is putting out voltage between .1-.7, at least.  I don't know
if I'm supposed to have my ground hooked up when i test it (its a spliced 4
wire) .   And it was an ACDelco Sensor.


On Thu, Apr 2, 2009 at 6:30 PM, urq <urq at pacbell.net> wrote:

> .... for info on trouble codes ... if you don't have the manual go to Scott
> Mockry's website:
>
>    http://www.sjmautotechnik.com/trouble_shooting/ecufv8.html
>
> The problem can be elsewhere in the system ... the OXS is just the
> "messenger" ... as SJM (and the manual) indicate ... the real problem may
> be
> elsewhere in the fuel/ignition system.  Since you say the engine is running
> poorly, it could be that one or more cylinders are misfiring, which is
> causing the ECU to see a constant over-rich condition that it can't
> control.
> The other prime candidate is the fuel pressure regulator.
>
> I don't remember what else you did earlier ... have you checked the
> distributor caps and rotors?  Have you checked the spark plugs?  Have you
> replaced the fuel pressure regulator?
>
> Didn't you say that you installed a 4-wire OXS?  What car was it intended
> for?  I installed a FoMoCo "replacement" in one of my cars ... it clearly
> had a different warm up characteristic from the Bosch ...
>
> Steve B
> San Jose, CA (USA)
>
> -----Original Message-----
> From: v8-bounces at audifans.com [mailto:v8-bounces at audifans.com] On Behalf
> Of
> NIck Miller
> Sent: Thursday, April 02, 2009 3:57 PM
> To: v8 at audifans.com
> Subject: [V8] More o2 sensor woes...
>
>     That was the most short lived happiness ever.  I had about 4 days
> before my car threw a 2341 2342 at me again, and started idling like
> crap.... again.
>      I was wondering if anyone knows where/how I can test an 02 sensor.  I
> did check the heater wires and they seem about right for a heater.  14k
> ohms
> on the sensor side, and about none on the car side.  My fuse No. 5 is fine.
> I can't get a reading on the sensor wire through the ground, so I guess
> there has to be a way to test it.
>
>      I'm just curious if it could be that after 100 miles an O2 sensor is
> bad, again?  I think I have an exhaust leak where the cats connect to the
> exhaust pipe on the forward end (pre-cat)  so could that be it?  Ugh.  This
> must be the *50th* time I've written you guys, so sorry for crapping up the
> Inbox.  I'm getting somewhat distraught here, however.
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