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#11
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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. |
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#12
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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
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"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
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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
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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
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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
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"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
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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
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"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
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"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. |
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