Has anyone installed an EGT gauge?

[Cabrera]

Well the new connections are solid! That fixed the code throwing issue.
Tomorrow I'll re attach the EFIE and fire up the generator!

BTW I found something interesting about the EFIE.
With all the fluctuation the O2 sensor does, when I set the EFIE to .25volts
I thought that was what I was setting it at. Being now able to check the signal at the ECU
I noted if the EFIE is on, you will read the voltage the oxygen sensor is producing plus the voltage
being added by the EFIE.
Lets say you set the EFIE to .25 volts. Let's also say that when reading the oxygen
sensor in the previous paragraph, you saw a fluctuating voltage between .2 and .7 volts. When reading the
computer's input voltage you would then see a constantly changing voltage in the range of .45 and .95. This is
due to the .2 to .7 volts the sensor is producing, plus .25 volts that the EFIE is adding.

 

[Cabrera]

First I set my EFIE to 375mv and I was throwing codes all over the place. The Trac ran rough & at idle, it was jumping around.

Then I set my EFIE to 350mv and it ran better but still not right!

I lowered it to 340mv. It threw 2 DTC codes (0133 & 0153 Heated O2 Sensor Circuit Slow Response) and it ran sluggish.
I backed them off to around 310mv (it fluctuates between 307 & 312 mv) and it ran better.

This morning I was at a stop sign waiting to turn, there was a car coming about 15 car lengths away. I hit the gas & the Trac choked! Like it was not getting fuel.

Driving down the road it just didn't "feel"right. I've decided to drop it again, this time to 275mv.
It idles much smoother. I will take it for a test run & see if this will resolve the performance issue. Then I will evaluate the MPG at the end of the next 100 miles

 

[Cabrera]

I don't usually put 100 miles in a week but for testing purposes I have been using the Trac to take my son to school. Since I saw the Hess station had gas for $2.45/gal. I decided to fill up. I put 98 miles on the Trac.

With a setting of 275mv as a base to the O2 sensors, driving only local, the Trac averaged 13.9 mpg which was 2.7% less than my mpg with the EFIE set at 350mv which was 14.3 yet better than my base mpg of 13mpg. If you recall at 350mv the Trac ran like crap.

Now it's a matter of tweaking.
I raised the base mv to the O2 sensors to 300mv. The truck still runs smooth with no loss in power or performance.

I will post in another 100 miles what my findings are.

As a footnote, I did note one thing, at idle she seems to burn more gasoline & less hydrogen. I am wondering if I should T the Hydrogen line with a check valve and run a feed directly to the intake manifold. This will allow the the Trac to feed on more hydrogen at idle.
I will have to look into this.

 

[Cabrera]

With a setting of 275mv as a base to the O2 sensors, driving only local, the Trac averaged 13.9 mpg which was 2.7% less than my mpg with the EFIE set at 350mv which was 14.3 yet better than my base mpg of 13mpg. If you recall at 350mv the Trac ran like crap.

Now I raised the base mv to the O2 sensors to 300mv driving only local, the Trac averaged 15.6 mpg which was 10.9% more than my mpg with the EFIE set at 275mv

My no HHO local mileage is 13mpg So with HHO I get 15.6 that's a 16.67% overall improvement. The truck still runs smooth with no loss in power or performance. I will increase the base mv to 310mv & see the results.

I will post in another 100 miles what my findings are.

 

[Cabrera]

Today I did a systems inspection of the HHO system. Basically, looking for leaks, corrosion, & problems in general, especially after seeing Lee's MAF pictures.

All the connections were tight, the reservoir was sealed, the bubbler did not any leaks. I replaced the vinegar & distilled water solution in the bubbler even though it was clear.

Next I broke down the cold air intake. Basically what I am looking for here is corrosion. Since KOH is corrosive to aluminum & I had previously replaced my OEM rubber intake with aluminum tubes, I thought it prudent to inspect this.

The first thing I saw when I disconnected the tube from the throttle body was that I did have some corrosion in the tube.

You can see the trail coming from the HHO inlet down the pipe towards the air cleaner.
The opposite side towards the throttle body was relatively clean with just some minor residue on the poly connections.

My throttle body housing as well as my MAF housing is made of plastic. Neither of those 2 components were affected.

As it appears that the HHO is more or less hitting the airflow & going everywhere, I decided to rig it so the HHO is fed as close to the throttle body without interfering.

This feed tube is 4 mm away from the throttle body butterfly. I also repositioned the intake tube so that it is even and not at a downward angle towards the MAF.

Hopefully this will direct more HHO gas to the intake at idle which I have noted the Trac uses more gasoline.

 

[2000StreetRod]

HHO at idle

. . . Hopefully this will direct more HHO gas to the intake at idle which I have noted the Trac uses more gasoline.

Even though your HHO production is voltage dependent it seems to me the percentage of HHO to ambient air would be greater at idle than at mid-range engine speed. How did you determine that your fuel consumption is greater at idle?

 

[Cabrera]

Even though your HHO production is voltage dependent it seems to me the percentage of HHO to ambient air would be greater at idle than at mid-range engine speed. How did you determine that your fuel consumption is greater at idle?

My scangauge has a gallons per hour setting. I found that with the HHO running it used 52 GPH vs with the HHO off it was using 49 GPH.

I am almost certain that because at idle the gas is not being directed into the TB at the rate it is when under acceleration, the injectors feed the truck more.

It's just a theory, but now with the inlet 4mm from the TB the idle GPH is 45.
I will not changed the EFIE settings yet, I want to note if this give me any increased MPG.

My concern was the trail of aluminum corrosion going backwards towards the air filter. I could see it going towards the TB with the airflow, but this is going against the airflow.
I assume this happens at idle when the butterfly is closed more & the HHO gas is building behind it.

It's all trial & error!

 

[2000StreetRod]

GPH computation

My scangauge has a gallons per hour setting. I found that with the HHO running it used 52 GPH vs with the HHO off it was using 49 GPH.

I am almost certain that because at idle the gas is not being directed into the TB at the rate it is when under acceleration, the injectors feed the truck more.

It's just a theory, but now with the inlet 4mm from the TB the idle GPH is 45. . . .

There is no way to monitor the actual fuel consumption. Your scan gauge probably just reads and displays the PCM computed "instant economy" parameter. The PCM probably uses engine rpm, MAF sensed air flow, throttle position and possibly engine and inlet air temperatures to determine engine load and fuel economy. I'm surprised the GPH changed after moving the HHO introduction point. At idle I suspect most of the air flow is via the idle air control valve. On my 2000 the air tube feeding the IAC valve is just downstream of the MAF sensor. If your system is similar and the throttle plate when closed passes almost no air then you will have a reverse air flow in the main tube at idle. I would be concerned about the HHO gas flowing toward the MAF sensor element and possibly contaminating it.

 

[Cabrera]

On my 2000 the air tube feeding the IAC valve is just downstream of the MAF sensor. If your system is similar and the throttle plate when closed passes almost no air then you will have a reverse air flow in the main tube at idle. I would be concerned about the HHO gas flowing toward the MAF sensor element and possibly contaminating it.

My fear exactly. If you notice from the 1st photo I posted, there seem to be a stream of corrosion flowing towards the MAF. Fortunately there was nothing on the Maf at all. You are correct about the IAC, that corrosion flow heads right towards it and stops at the IAC tube.

I am in the process of building a scrubber to remove any KOH from the final HHO gas production.

 

[2000StreetRod]

fuel economy results?

By now you should have some fuel economy results for several tanks of fuel. Have you encountered any significant improvement in fuel economy?

 

[Cabrera]

By placing the hho port 4mm away from the throttle body butterfly & producing 2 lpm and no other modification to the o2 sensors, I did manage to increase the MPG to a consistent 16.7 in local traffic. So the closer it is to the throttle body the better. I have not touched a highway or county road at all.This is all local stop & go driving. It's better that the original 13 or so MPG but still not really what I was looking for. I was kind of looking to get 20 MPG in the city. Maybe it's because this damn truck weighs 5,840 lbs, I have no idea.

This of course verifies as BS all of the claims that say "you can run your car on water". I can't imagine the amount of HHO I would need to produce to run a v6.

Another point is that pre ECU cars respond much better to HHO. The ECU is constantly fighting me in the Trac. On the Beetle, manual timing adjustment and manually adjusting the air flow gave me much better improvement.

 

[Cabrera]

As I mentioned I had noticed that my mileage wasn't as good in the last few fill ups as I had hoped. Well today I accidentally found the culprit.

While I was adding distilled water to my KOH tank, I noticed that there was a split in the tank at the seam. So in effect, I had am HHO gas leak for about 3 weeks. I anticipated these types of problems which is why my reservoir tank is installed just behind the grill on the driver's side. This is far enough away from the intake and any potential flashback issues.

I replaced the tank with a 2 quart unit of much thicker plastic.

 

[2000StreetRod]

post new results

Please post your new mileage results for a couple of fill ups after replacing the KOH tank.

 

[explorinitup]

this is good. i never though of tweekin the o2. i was goin to the maf. i will look in to this THANKS!!

 

[Cabrera]

this is good. i never though of tweekin the o2. i was goin to the maf. i will look in to this THANKS!!

Fords HATE the MAF enhancer. You will throw codes right & left
The EFIE is much better. This is an dual analog one which works great. they have quad digital ones that make setting the o2 sensor easier than the analog ones