A Cars forum. AutoBanter

If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below.

Go Back   Home » AutoBanter forum » Auto makers » VW water cooled
Site Map Home Register Authors List Search Today's Posts Mark Forums Read Web Partners

Is it for sure the Catalytic Converter?



 
 
Thread Tools Display Modes
  #11  
Old July 13th 05, 06:12 AM
G-Ram
external usenet poster
 
Posts: n/a
Default

for those who say 02 sensor.....is there anyway to check it before I
spend $70 on it?

mr nobody wrote:
> In article >, Dave says...
> >
> >"G-Ram" > wrote:
> >
> >>I have had an issue with my 95 Jetta that is quite honestly driving me
> >>crazy. I will give you as much history as possible and god bless anyone
> >>that can really help me.
> >>

> > fix...but after the assistance I have got from them I am
> >>going to take my chances on the net.

> >
> >>I bought the car a few years ago. It ran fine when I bought it. When it
> >>is started, about 20 or so minutes in I will see the engine light come
> >>on. It has done this since day one. Gradually over time I have noticed
> >>

> >Sounds like what happened to me and it was the 02 sensor.

>
> I am simply amazed that you are the first person to mention the most obvious
> culprit.... at least to check or replace 1st.


Ads
  #12  
Old July 13th 05, 06:24 AM
Tom's VR6
external usenet poster
 
Posts: n/a
Default

In rec.autos.makers.vw.watercooled, G-Ram wrote:

>for those who say 02 sensor.....is there anyway to check it before I
>spend $70 on it?


One thing to do is to disconnect it, and see if the car runs better.

  #13  
Old July 13th 05, 07:47 AM
Harry
external usenet poster
 
Posts: n/a
Default

"Tom's VR6" > wrote

> One thing to do is to disconnect it, and see if the car runs better.


Not to be posting all over this newsgroup: There is some major common sense
and a stupidly simple test.

I had a Golf A2 once that ran great for the a couple of minutes then ran
terrible, puffing smoke after that and missing. It ran so bad that it was
undrivable. It WAS the O2 sensor and it also was a real son of a B to
remove because the anti-seizing compound did not work too well. It took
great effort to remove it. I had to weld a special bar up to remove it. I
put in a generic O2 sensor that cost about 20 bucks from a discount parts
dealer

Ran perfect after that.

If the cat were blocking exhaust flow it should be noticable out the back
exhaust feeling the restriction. If it is blowing freely it is not
restricted. It is probably toast though, like I said before and very well
will fail emission inspection from running a badly running engine through it
for so long.

Harry



  #14  
Old July 14th 05, 09:06 PM
G-Ram
external usenet poster
 
Posts: n/a
Default

OK EVERYONE!!!!

I have been informed by my mechanic that the reason for all of these
problems I am having is because the Hall Generator is bad and needs to
be replaced. My entire exhaust system is fine (thank god) everything
else is fine too.

Maybe a discussion on what the hell a Hall Generator is and what
function it performs is in order...

Thanks to everyone who replied with ideas and assistance.....

  #15  
Old July 14th 05, 09:56 PM
Woodchuck
external usenet poster
 
Posts: n/a
Default

It's inside the distributor. It's like points in them old cars.

"G-Ram" > wrote in message
oups.com...
> OK EVERYONE!!!!
>
> I have been informed by my mechanic that the reason for all of these
> problems I am having is because the Hall Generator is bad and needs to
> be replaced. My entire exhaust system is fine (thank god) everything
> else is fine too.
>
> Maybe a discussion on what the hell a Hall Generator is and what
> function it performs is in order...
>
> Thanks to everyone who replied with ideas and assistance.....
>



  #16  
Old July 14th 05, 11:24 PM
John H
external usenet poster
 
Posts: n/a
Default

Here you are, from Microswitch:

http://content.honeywell.com/sensing...l/chapter2.pdf

>
> Maybe a discussion on what the hell a Hall Generator is and what
> function it performs is in order...


>



  #17  
Old July 15th 05, 02:08 AM
Dave
external usenet poster
 
Posts: n/a
Default

"G-Ram" > wrote:

>OK EVERYONE!!!!
>
>I have been informed by my mechanic that the reason for all of these
>problems I am having is because the Hall Generator is bad and needs to
>be replaced. My entire exhaust system is fine (thank god) everything
>else is fine too.
>
>Maybe a discussion on what the hell a Hall Generator is and what
>function it performs is in order...
>
>Thanks to everyone who replied with ideas and assistance.....



pulse generator that makes use of the Hall effect and consists of a
rotor with vanes, a conductive element with a permanent magnet and the
Hall IC. Also called "Hall element."

AND

transistorized ignition with Hall generator:
(TI-H) There are two types of TI-H: in one version, the dwell angle is
determined by the width of the rotor vanes in the distributor; the
other version contains a circuit for automatic dwell angle control
incorporated in the electronic control unit
  #18  
Old July 15th 05, 02:27 AM
Tom's VR6
external usenet poster
 
Posts: n/a
Default

In rec.autos.makers.vw.watercooled, G-Ram wrote:

>
>Maybe a discussion on what the hell a Hall Generator is and what
>function it performs is in order...


In addition to the other info, its main function is to tell the
engine computer when to fire the spark.



  #19  
Old July 15th 05, 06:38 AM
Harry
external usenet poster
 
Posts: n/a
Default

"G-Ram" > wrote

> OK EVERYONE!!!!
>
> I have been informed by my mechanic that the reason for all of these
> problems I am having is because the Hall Generator is bad and needs to
> be replaced. My entire exhaust system is fine (thank god) everything
> else is fine too.


I would have a serious issue with the shop that charged me over 500 dollars
saying the problem was a timing belt that was nonsense.. The material thing
is what was written on your service order. If it promised to fix the 'engine
needs service' light and that was written as the problem you may have
grounds for reinbursement - though I doubt they will happily go that way.
Probably more to it and I am jumping to conclusions like the service was
performed too long ago.

Harry


  #20  
Old July 15th 05, 03:57 PM
PabloRena ---> AnalProbe
external usenet poster
 
Posts: n/a
Default


"G-Ram" > wrote in message
oups.com...
> OK EVERYONE!!!!
>
> I have been informed by my mechanic that the reason for all of these
> problems I am having is because the Hall Generator is bad and needs to
> be replaced. My entire exhaust system is fine (thank god) everything
> else is fine too.
>
> Maybe a discussion on what the hell a Hall Generator is and what
> function it performs is in order...
>
> Thanks to everyone who replied with ideas and assistance.....


Did he say that the Hall Effect sensor can be replaced itself, or does he
need to replace the entire distributor?

I don't know why he's calling it a "Hall Generator" when its actually a
sensor. To quote from my handy dandy "Electronic Engineer's Handbook, 3'rd
Edition", page 6-88., "A magnetic field applied across a current-carrying
material will force the moving carriers to crowd to one side of the
conductor. An electric current will develop as a result of this
crowding...". I believe that when the distributor is rotating, some portion
of it must be magnetized and this spinning magnetic field crosses the Hall
Effect sensor. The output of the sensor is a series of electric pulses that
are conditioned (filtered and level adjusted with operational amplifiers)
and interpreted by the engine controller to adjust timing.

Anyone, tell me if I've got this wrong. As I told the orignal poster back
on 7/12/05, I knew it was either the distributor or the catalytic converter,
I just didn't know which one. Unfortunately on my car both systems had to
be replaced at the same time.


 




Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Super catalytic converter RichA Ford Mustang 1 June 29th 05 04:28 AM
2001 Toyota Camry Catalytic converter 2confused Technology 8 March 8th 05 01:35 AM
Replace catalytic converter? Matthew Technology 12 March 4th 05 06:53 PM
2001 Impala catalytic converter clogged JOHN D Technology 4 March 2nd 05 10:57 AM
98 Accord catalytic converter failed eh Honda 1 October 13th 04 01:42 PM


All times are GMT +1. The time now is 12:02 AM.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Copyright ©2004-2024 AutoBanter.
The comments are property of their posters.