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Chrysler Repair/HHO PT Cruiser

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QUESTION: Hi Roland.
I installed an HHO system on my 2001 PT Cruiser.
It only increased my mileage from 1 to 5 percent.
So I installed a second HHO system and still only received about 5% or less.

In my search as to why this is happening, I think it’s the cars computer reading a cold engine, if you will, because of the oxygen sensor. Your thoughts?

So in my search I’ve learned I needed an EIFE – electronic ignition fuel enhancer.

http://www.fuelsaver-mpg.com/efie-described

Then someone said this product is better

http://www.hhokitsdirect.com/mileage-chip-for-hho-generator.php

So, now I’m confused.

My neighbor gets 35% more miles with his car, but it is much older and doesn’t have a computer. So, I’m trying hard to make this work.

Your thoughts?
Thank you,
Randy

ANSWER: I am tied up for a while but will get back with an answer later today. By the way what is an HHO system and is it made by Chrysler. If not how about a website about it?

---------- FOLLOW-UP ----------

QUESTION: Oh sorry Roland,
An HHO system converts water (H2O) into two parts hydrogen and one part oxygen. Now that it's in a gas state, you plum it into the air intake. What happens is the engine burns the hydrogen and oxygen, also helps the gasoline to burn, and the exhaust becomes water again.
Therefore the engine is burning hydrogen instead of gasoline.
It's a very simple and old system, but today's cars with computer controlled engines, anything outside the computers parameters results in poor engine running or in my case poor gas mileage.

So, what I think is happening, either I’m sending too much or too little oxygen out the exhaust and the computer is compensating for it by changing the air/gasoline mixture.

I tried to find you a good example of a HHO system. And I think this should help.

http://www.youtube.com/watch?v=Q6Cy2qdkTQs

Unfortunately, although this technology is old…it is new to computer controlled engines. In my searches I’m finding just as much bad information as I am finding good information. It’s hard to tell the difference, so one has to go out and try it themselves. Unfortunately, buying items for testing can get expensive.

So in my search I’ve learned I needed an EFIE – electronic ignition fuel enhancer.

http://www.fuelsaver-mpg.com/efie-described

Then someone said this product is better

http://www.hhokitsdirect.com/mileage-chip-for-hho-generator.php

So, now I’m confused.
I need a car technician to help me through this problem.

Thank you Roland.
Randy

Answer
Hi Randy,
Given the exhaust sensors which assess the oxygen content of the 'burn', I would not be surprised that the computer is trying to make adjustments to the fuel/air mixture, but it is programmed under certain assumptions about the nature of the fuel and air. Because of the add on system which modifies the hydrogen content of the input air and thus the ratio hydrogen/oxygen, the computer may be making inappropriate adjustment to the fuel/air ratio. I have to say that I have no experience whatsoever with the HHO approach or the electronic ingnition fuel enhancer. I wish that I could be of help but there must be other resources that would give you some advice based on experience.
Roland
PS I will check the reference you sited and will send you a revised answer if I see something that may by useful to you.

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Roland Finston

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I specialize in Chrysler/Dodge/Plymouth cars, minivans, and SUV's for the model years 1982-2008 based upon my 50-year DIY experience, factory shop manuals and wiring diagrams. I offer fast repair advice to help you minimize repair costs by helping you diagnose and do it yourself. Problems with electronically controlled engines and transmissions as well as body wiring problems are my specialty.

I take questions one at a time between 8am and 10pm CT and attempt to answer within 20 minutes. "Maxed Out" means I am answering another question of otherwise busy, so try again later.

There are answers on file to more than sixteen thousand Chrysler questions at your finger tips: put a few key words in the "find" box (above) or click on "view past answers" for a chronological list of my q and a's. Don't use "Add to this answer" if you still have a question...ask it. As to trucks and jeeps I only have manuals for the '04-'06 model years.

Experience

Five decades as a 'do-it-yourselfer' on domestic and imported cars

Organizations
Yahoo Autos Group called The Chrysler Lebaron Club (co-moderator)

Education/Credentials
Degrees in Physics/bruised knuckles.

Awards and Honors
"Top expert of 2010" and "2011" at Allexperts. Among top 50 experts for years 2006-2009 at Allexperts.

Quickest "average response time" at Allexperts (currently no. 1).

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