[V8] "Major Surging"

Mon Jul 19 14:53:23 EDT 2004

Does anyone know what the black wire goes to?  I was hoping it was a ground and I could just ground it somewhere else since I screwed the connector up.

In a message dated 7/19/2004 11:31:28 AM Eastern Daylight Time, dsaad at icehouse.net writes:

>Since you have a need to replace connectors, It would probably make sense (and
>cents) to choose a particular O2 sensor - either a 3 wire or 4 wire, then get
>the mating engine side plug and splice it into your system. Remember if you go
>with the 4 wire, you need to add a ground wire. This way you can buy off the
>shelf Ford sensors and plug them right in. This is what I have done.
>To get to the wires, you will probably have to remove all the air box stuff to
>gain easy access to the wire harness.
>
>Dave
>
>Quoting BBlake1055 at aol.com:
>
>> Ok now that I have totally screwed it up.  After 30 minutes of going back and
>> forth with rust blaster I got the O2 sensor out but screwed up the black wire
>> connection at the head.  What does the black wire do and can I splice into it
>> somewhere?  I broke the connector off right at the connecting block (didn't
>> realize it was a "slip on" connector.
>>
>> Now I know why I stopped working on my own cars years ago!!!!
>>
>> Also, anybody know what thread the O2 sensor is?  I need to clean the threads
>> up a little - part of the O2 sensor threads are still in the X-pipe.
>>
>> Bob Blake
>>
>> 90' V8
>> 91' V8 (currently on jack stands)
>> 92' V8
>> In a message dated 7/18/2004 11:44:06 AM Eastern Daylight Time,
>> BBlake1055 at aol.com writes:
>>
>> >I've never changed it in the 50,000 miles I've put on it so I guess I'll
>> pick one up and give it a shot.  Thanks for all the responses.
>> >
>> >Bob Blake
>> >
>> >90' V8
>> >91' V8
>> >92' V8
>> >
>> >
>> >In a message dated 7/18/2004 11:30:11 AM Eastern Daylight Time, "S Dewitt"
>> <sdewitt at stx.rr.com> writes:
>> >
>> >>Yes, the engine is running in warm up mode, which means a rich mixture to
>> >>get things nice and warm. The O2 sensor also needs time to warm up until
>> it
>> >>becomes functional..
>> >>
>> >>Scott DeWitt
>> >>Advanced Automotion
>> >>817-939-6761
>> >>----- Original Message -----
>> >>From: <BBlake1055 at aol.com>
>> >>To: <v8 at audifans.com>
>> >>Sent: Sunday, July 18, 2004 10:02 AM
>> >>Subject: Re: [V8] "Major Surging"
>> >>
>> >>
>> >>> One thing I did notice is that when the engine is cold it doesn't seem
>> to
>> >>have the surging problem. Would that make a difference with the O2
>> sensor???
>> >>>
>> >>> Bob Blake
>> >>>
>> >>> 90' V8
>> >>> 91' V8
>> >>> 92' V8
>> >>>
>> >>> In a message dated 7/17/2004 8:49:54 PM Eastern Daylight Time, Kneale
>> >>Brownson <knotnook at traverse.com> writes:
>> >>>
>> >>> >Oxygen sensor????
>> >>> >
>> >>> >At 08:19 PM 7/17/2004 -0400, BBlake1055 at aol.com wrote:
>> >>> >>My 91' has recently developed some major surging problems. It use to
>> be
>> >>> >>minimal at 3/4 throttle but now it seems to be there 95% of the time.
>> >>> >>
>> >>> >>I notice when the computer was in the "instant mileage" mode and I
>> held
>> >>it
>> >>> >>at a steady 65 mph the mileage would bounce back and forth from 28 mpg
>> -
>> >>to
>> >>> >>21 mpg. it feels as if the fuel pump is tuning on and off. The overall
>> >>gas
>> >>> >>mileage is still ok.
>> >>> >>
>> >>> >>Any ideas????
>> >>> >
>> >>> >_______________________________________________
>> >>> >Audifans V8 mailing list
>> >>> >Send posts to: mailto:V8 at audifans.com
>> >>> >Manage your list connection:
>> http://www.audifans.com/mailman/listinfo/v8
>> >>> >Have an Audi V8 question? Check the Audifans Knowledgebase!
>> >>> >http://www.audi-quattro.org/cgi-bin/twiki/view/Audi/V8
>> >>> >Have a V8 answer? ... Please help others by adding to the KB ... all
>> >>contributions welcome!
>> >>> >
>> >>> _______________________________________________
>> >>> Audifans V8 mailing list
>> >>> Send posts to: mailto:V8 at audifans.com
>> >>> Manage your list connection: http://www.audifans.com/mailman/listinfo/v8
>> >>> Have an Audi V8 question?  Check the Audifans Knowledgebase!
>> >>> http://www.audi-quattro.org/cgi-bin/twiki/view/Audi/V8
>> >>> Have a V8 answer? ... Please help others by adding to the KB ... all
>> >>contributions welcome!
>> >>
>> >>
>> >_______________________________________________
>> >Audifans V8 mailing list
>> >Send posts to: mailto:V8 at audifans.com
>> >Manage your list connection: http://www.audifans.com/mailman/listinfo/v8
>> >Have an Audi V8 question?  Check the Audifans Knowledgebase!
>> >http://www.audi-quattro.org/cgi-bin/twiki/view/Audi/V8
>> >Have a V8 answer? ... Please help others by adding to the KB ... all
>> contributions welcome!
>> >
>> _______________________________________________
>> Audifans V8 mailing list
>> Send posts to: mailto:V8 at audifans.com
>> Manage your list connection: http://www.audifans.com/mailman/listinfo/v8
>> Have an Audi V8 question?  Check the Audifans Knowledgebase!
>> http://www.audi-quattro.org/cgi-bin/twiki/view/Audi/V8
>> Have a V8 answer? ... Please help others by adding to the KB ... all
>> contributions welcome!
>>
>
>
>
>_______________________________________________
>Audifans V8 mailing list
>Send posts to: mailto:V8 at audifans.com
>Manage your list connection: http://www.audifans.com/mailman/listinfo/v8
>Have an Audi V8 question?  Check the Audifans Knowledgebase!
>http://www.audi-quattro.org/cgi-bin/twiki/view/Audi/V8
>Have a V8 answer? ... Please help others by adding to the KB ... all contributions welcome!
>