oxygen sensor

[Wan]

Hey there,

I have an a '91 L300 TDI and need to know if these brutes have oxygen sensors...?? I'm told any vehicle beyond '82 has them, but I need to know for sure. And if so, what kind of o2 sensors do Delica's have (zirconia - variable voltage?) and are they narrow-band sensors or wide-band sensors? Of course the crucial question... how do I access them? Can anyone help?

Wan

[bae146]

Um Diesels do not have O2 sensors. Why do you think you need to access an O2 sensor?

[Wan]

I am installing a hydro-booster (electrolyzer) which will not have it's benefits if there is an oxygen sensor in the system. Are you certain all diesels do not have oxygen sensors?

I am told that any vehicle with a catalytic converter has an oxygen sensor. Our vans certainly have converters, so what's the deal?

[bae146]

Um you have not have a catalytic converter either. I think you need to gain more knowledge of what you are working with before you spend you money on something that may have no benefit to you.

[Wan]

I just learned from my mechanic that there is no converter. Whoops. You're right, I need to learn more. That's why I'm asking questions. Thank you for your help bae146.

"Forgive the ignorance of those who have yet to learn what you already have."

Cheers

[bae146]

Hey keep the questions coming. It is the only way to learn. I am no diesel expert. I am somewhat mechanically inclined though. I don't even have a Delica( I have a Pajero) Before you buy something for your van by all means post a question. We may be able to save you some $$$

[Wan]

Cheers mate!

[bae146]

http://www.thepartsbin.com/catalog/?N=9167&Nr=OR(AND(make:Ford,model:F-250%20Super%20Duty,year:2001),AND(universal:1))&Vi=1616+10329+4294967264&y=2001&mk=Ford&md=F-250%20Super%20Duty

Replacement Oxygen Sensor
1999-2007 Ford F-250 Super Duty"OXYGEN SENSOR -- Oxygen Sensor. Universal Type, 2 Wire 20Cm Long, Without Connectors, A High Quality, OE Replacement Part That Fits And Looks Just Like The Factory Original Product For A Fraction Of The Cost, Ground Shipping Only" Free Shipping on Orders Over $50
Availability: In Stock
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FITS (Engine/Chassis) SKU PRICE QTY
1999-2007 Ford F-250 Super Duty USOS-2000 $31.63

2001: 8Cyl 7.3L Lariat
2001: 8Cyl 7.3L XL
2001: 8Cyl 7.3L XLT
2001: 10Cyl 6.8L Lariat
2001: 10Cyl 6.8L XL
2001: 10Cyl 6.8L XLT
2001: 8Cyl 5.4L Lariat
2001: 8Cyl 5.4L XL
2001: 8Cyl 5.4L XLT

And you posted that here WHY?

[marsgal42]

Your information is incorrect: Canadian cars didn't have catalytic converters (and oxygen sensors) until 1990. The 1982 date is probably from California. Our L300 Delicas are old-school diesels, with mechanical injector pumps and no computers. Just a couple of barometric doodads for boost pressure and ambient air pressure.

You can answer your original question by crawling underneath and having a look.

FWIW: my 1986 VW Jetta (1.8 litre gas engine) has no cat or oxygen sensor either. Just mechanical CIS fuel injection, VW's version of Bosch K-Jetronic. And a big filler neck for leaded gas.

...laura

[jwfchase]

[/quote]


And you posted that here WHY?[/quote]


Probably to demonstrate that some diesels do have oxygen sensors? Or is it mass airflow sensors- I think that's what our 2001 VW Golf TDI had.

[Wan]

Laura,

Thanks for staying on topic and for the great info!

Not sure if I'll be able to tell what kind of alternator I have just by looking at it from below the vehicle (I'm no mechanic by any stretch), but I'll check it out.

Do you know of any devices in our Delica's, such as the barometers you mentioned, that might mess up the intended benefits of a booster injecting combustible gases like hydrogen, nitrous oxide, and oxygen into the air intake?

Wan

[mararmeisto]

Do you know of any devices in our Delica's, such as the barometers you mentioned, that might mess up the intended benefits of a booster injecting combustible gases like hydrogen, nitrous oxide, and oxygen into the air intake? Wan

Catalytic converter not required in a diesel because the carbon monoxide emission levels are lower than a gasoline engine.

Oxygen sensor not required in a diesel because it wants to pack as much air into the cylinder before fuel injection in order to increase compression and temperature (more compression, greater temperature, better combustion of injected fuel). 'Waste oxygen' is simply not an issue.

What is it you are trying to do, Wan? We can all help you a lot better if we know what the "problem" is you are experiencing.

[Wan]

Mararmeisto,

Great info! Thank you.

Here's what I'm doing. I've made a device called an electrolyzer. It's a separator of water essentially which uses electricity to separate the oxygen and hydrogen atoms that make up water, so that you can use these two very combustible elements as extra fuel for your engine. It's like a hydrogen-oxygen gas supplumenter.

The device draws at most 20 amps from the battery and sends the gas to the air intake of the engine. I have the gas tube injected in the air-line just after the air filter.

Many people wish to dispute that it is inefficient, which ultimately, it is... as are most technologies, but it's all relative. The way I look at it, I could install a 600 watt amp for my stereo and draw nearly 50 extra amps from my system just to have wicked bass, or I can draw 20 amps and give something back to the system instead, such as highly combustible "Hydroxy" gas, as it is called amongst the scientists and engineers developing this technology.

I have already verified it works great. The engine is noticeably quieter, my torque range is longer, but increased power seems to be lacking. So I did a test and watched the rpm gauge as I turned the cell (electrolyzer) on and off. Normally, the rpm's should rise with the extra hydroxy contribution, but they actually lowered. At first I thought I was having oxygen sensor issues, which is a common issue for these devices on most modern vehicles, which is why I posted my original oxygen sensor question. So now I've learned our vehicles have no oxygen sensors, or computers (which is wonderful!)... so I've moved on to the next most likely culprit... the alternator. Most of the folks on the 'Hydroxy' yahoo forum I speak to think that my alternator's amperage rating is too low to handle the extra demand of the cell, and so the engine gets bogged down resulting in lower rpms. I will verify this in a couple days by disconnecting 20 amps worth of other energy drainers in the van and then trying to run the cell again. If the rpm's rise this time, then I know the alternator is my problem and then will start my journey into the land of alternator upgrades and all that that entails. If I need to install a new alternator, I hope you guys can help me.

Anyway, I appreciate everyone's thoughts and concerns... and if anyone can tell me how to check the specs on my alternator I'd be thrilled to hear it!

Wan

[jrman]

Dooood....I cannot help you in any way...but have to say I love what you are doing! Will watch you're progress with much interest! Good luck!

[mararmeisto]

...no oxygen sensors, or computers (which is wonderful!)... Wan

There is a computer in these things, it's just a simple one (from what I've been told). Check with ccautos to learn what the computer is doing; he would have a better idea than most of us.

Gotta remember, these vehicles are almost 20 years old, so the advent of complete engine control with computers had not quite hit the industry, especially in the diesel market. A diesel engine is very simple and doesn't need a lot of control to 'tweak' the process. I imagine the L400 is going to be a VERY different story when we start bringing those in.

As for the 'electolyzer', I'm going to have to look that one up... sounds interesting though.