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Author Topic: Oxygen sensor stand-off, and reseting F150 Computer yield poor results  (Read 9850 times)

Offline KilltheMessenger

  • Newbie
  • *
  • Posts: 21
I was getting ready to introdice HHo to my F150 5.7 Liter , Triton engine. I was already getting 21 MPG on the morning commute, but I wanted to kick it up to 30 or better.  My understanding was that the standoffs for the oxy sensors would increase mpg a small amount all by themselves.  The opposite is what happened, my mileage went to no better than 10 mpg on the same trip that use to give me no better than 21 mpg. So i ran it for a could of weeks and put a couple of hundred miles on the computer. I did reset the computer by taking power away for 5 minutes when i changed the Oxy sensor spacers.
So I took the spacers off and did not reset the computer, and the mileage did not return to 21 MPG, or even increase over the poor 10 mpg I was getting. Boy, do I feel screwed now!  Can anyone shed any light on this for me? I will put the HHO online this weekend, but even if it kicks me up to 20 MPG, basically an 100% increase (near impossible), I will still not be back to where I was before I started.
My HHO generator is made of 13 plates, 3x14, you can see it under my youtube page under Killthemessengers.

                             Joe in Florida

Free Energy | searching for free energy and discussing free energy


Offline nickle989

  • Jr. Member
  • **
  • Posts: 81
Do the MAP sensor mod ... you will also need to clear your computer with a code reader unplugging will not work ... the O2 sensors have to have the voltage mods to them check out google for chemelec for this.  Remember when the O2 sees more O it thinks it can add more fuel ... also check out your draw on the plates and thing higher then 15 amps will not increase your results but produce more drag ... I would do a GEET mod on it for better results but it will cost you more to do the headers.  My chev 350 gets around 38 with the HHO (but mine is highly tuned with after market computer ... and no do not ask for pics)  My Caravan with the GEET mod gets almost 52 and no I will not send pics ... that is all the hints I will give.


Offline KilltheMessenger

  • Newbie
  • *
  • Posts: 21
I bought a Scangauge II, will that do any of what I need to do with resetting my computer?  Can you tell me why removing the power for 5 minutes did change things for the worse, but your saying that it did nothing to reset my computer? 

Thanks, pictures are not needed.   Joe

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Offline vdubdipr

  • Full Member
  • ***
  • Posts: 125
your sensors leaned out the engine too far, your computor knew this with no addition present, and went into open loop, battery disconnection / computor reset is twenty min on most cars, and yeah a scan gauge tool should clear it up, but the ones they use at autozone, not the mpg reading ones

Offline KilltheMessenger

  • Newbie
  • *
  • Posts: 21
I see that Actron makes lots of models of Scan Tools, and they sel them at some Autozones. Can you tell me which of the models will allow me to reset, or modify settings in my Ford computer? They go up pretty high in price, so start with the bottom model and work up from there. I will buy what I want to afford.  Most of what I read, said that the Scan Tool will read data rom sensors, and clear codes. I didn't see where it would allow changes to the computer.  Which models allow the changes needed to the sensors?

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Offline whopper1967

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  • Posts: 45
ive gotten my best results by using a map adjuster and leaving the o2 alone,i did try just unplugging it,but then it went slightly down,i assume because of going to open loop. so far i have went from 22 to 31 mpg.i am sure every car will react slightly different.good luck.

Offline KilltheMessenger

  • Newbie
  • *
  • Posts: 21
ive gotten my best results by using a map adjuster and leaving the o2 alone,i did try just unplugging it,but then it went slightly down,i assume because of going to open loop. so far i have went from 22 to 31 mpg.i am sure every car will react slightly different.good luck.

Can you suggest some reasonably priced Map adjusters? Some devices are $50 to $75 each, andthey say that one is needed on each O2 sensor. I have 4 of them. Or is this soemthing that attches to the computer?  If you reference a URL that explains the Map Adjuster, I will read up on it before asking any otjer questions.  Thanks,   Joe

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Offline whopper1967

  • Newbie
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  • Posts: 45
http://www.ehow.com/how_2277150_diy-fuel-injection-ecu-controller.html


this si the one we used.......about 10 bucks to build...

Offline KilltheMessenger

  • Newbie
  • *
  • Posts: 21
Thanks, I found that article last night and plan to make one.

Free Energy | searching for free energy and discussing free energy


Offline enki09

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  • Posts: 47
    • My Myspace
taking off or bypassing your O2 sensor makes the motor run lean (use less fuel). This modification is the single source of any improvement in fuel use that you will see with these devices.

Offline superdjsk

  • Newbie
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  • Posts: 3
Can you supply any facts, documents or testimonials from the learned elders to back up your OPINION?

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Offline superdjsk

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  • Posts: 3
Also, taking off the sensor causes the computer to run in a safe mode, which enriches the fuel.

Offline nickle989

  • Jr. Member
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  • Posts: 81
taking off or bypassing your O2 sensor makes the motor run lean (use less fuel). This modification is the single source of any improvement in fuel use that you will see with these devices.

This is completely a FALSE statement.  It would be interesting where you heard this or what proof you have that this would be a good thing to do.

When you remove the O2 sensor you will send the computer into a loop default mode ... a mode that is triggered by many sensors that could go faulty but enough to get you into a repair shop so you are not stranded on the road.  Modifying the signal voltage of the O2 is what you can do offer the engine a lean or rich command.  There are many many schematics for this type of mod. just google it.

Offline whopper1967

  • Newbie
  • *
  • Posts: 45
Exactly....as my personal experience on my car.With smack booster and map adjuster with o2 still hooked up,i was getting a 9 mpg increase,when i unhooked the o2 and it went into default mode,i lost about 3 mpg from that.I would think an efie and a map adjuster would be the way to go,but unhooking definately didnt work in my case,in others it may,but i dont see how.

 

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