what they do is make your engine run rich, because of this i wonder if you could use it as temporary fix to the lean conduction that happens on the 3v 5.4L with a CAI. I'M NOT IN ANY WAY ENCOURAGING THE USE OF THESE, just merely curious.
what they do is make your engine run rich, because of this i wonder if you could use it as temporary fix to the lean conduction that happens on the 3v 5.4L with a CAI. I'M NOT IN ANY WAY ENCOURAGING THE USE OF THESE, just merely curious.
some eff with the temp senor and some eff with the maf, some with both. they tell the computer more cold air is coming into the engine then actually is. making the computer add more fuel than is needed. this is how they heave been explained to me, and from what i have read of them it makes perfect sense. but i'm am in no way a pro, just curious.
Location: Among javelinas and scorpions near Tucson, AZ
Vehicle: 2005 Ford F150
Posts: 3,134
Quote:
Originally Posted by JimmysotherFORD
some eff with the temp senor and some eff with the maf, some with both. they tell the computer more cold air is coming into the engine then actually is. making the computer add more fuel than is needed. this is how they heave been explained to me, and from what i have read of them it makes perfect sense. but i'm am in no way a pro, just curious.
I think I'm seeing what i.ride. is suggesting - I don't think we actually know what this device does. *shrug* It COULD make the engine run rich, but there are other things that are sometimes done too.
Back in the bad old days, there was another device you could buy that would advance your idle timing a bit (which you were not supposed to know). This made the engine idle faster (supposedly due to hugely increased power) and the claim was that now you could dial back the idle speed and save a gob of fuel. Of course this was in the days of carburated engines with distributors and spark plug wires. Until we know exactly how these things operate, we really can't draw too many conclusions.
I don't think I'd try using one to correct a lean condition.
dirty little secret they don't tell you about handheld programmers that cost up to 15x as much as your jawdropper performance module is that they will void your factory warranty. Handheld programmers work by deleting and rewriting your factor computer's programming. During this highly technical procedure, often the ecu is damaged or the software is not completely loaded. When this happens, your vehicle's $3000 computer is junk and needs to be fixed by the dealer. The problem is, when you take your computer to be fixed, the dealer will use a their computer to interface with yours. Instantly they will be able to detect these changes and will void you warrantee!
It might be legit if they used correct grammar and spelling. Maybe its just me, but I have a hard time trusting someone that doesn't proofread, not even counting the validity of their statement.
Location: Among javelinas and scorpions near Tucson, AZ
Vehicle: 2005 Ford F150
Posts: 3,134
Quote:
Originally Posted by cstanek
It might be legit if they used correct grammar and spelling. Maybe its just me, but I have a hard time trusting someone that doesn't proofread, not even counting the validity of their statement.
I'm the same way, cstanek! When someone can't write, I have trouble taking anything they say seriously.
Of course, when we get something manufactured in China, as so many things are, and we get instructions written by someone over there, you mostly just have to laugh.
Peace, my friend. We're all offended, but, what can we do? We simply make fun of them and know our buddies on the forum will understand that it's a "shill" to be ignored.
And, just so you'll know - I've said this before: Back in the 70's, I bought one of those in-line fuel atomizers guaranteed to increase horsepower by 20% and mileage by about the same amount. Of course it didn't do anything except lighten my wallet. So, I've learned, and, I can laugh at myself now. And, it's easy to laugh at the new versions of these "miracle" devices too.
Was I stupid then? You bet! Did I learn from that experience? Guess!
- Jack
Jack-
No worries, man. I re-read my initial response, and I did come across as a little bit of a jerk. That wasn't what I meant. I think everyone falls for snake oil, sooner or later. I know I have. Your attitude is best, just laugh at them.
Location: Among javelinas and scorpions near Tucson, AZ
Vehicle: 2005 Ford F150
Posts: 3,134
Quote:
Originally Posted by i.ride.suzuki
A resistor would reduce the voltage.
If 3.50V is 59F, and reducing the voltage 0.50V would make the PCM read 77F.
Jack, you can verify/find the voltage/ad count/temp table on page 98/158 of the OBDSM pdf I sent you.
And, if I read you right at this point (agree totally that a resistor drops the voltage available in the rest of the circuit), you are saying lower voltage signals "warmer", and the fuel supply should be reduced, not increased - correct?
So, using this device would make the so-called "lean" problem worse, if I'm not misunderstanding?
If all this is true, no arguments whatsoever. My comment was directed toward the premise that the "miracle device" was nothing more than a resistor, and, unless someone has opened the thing to see what's in it, we really don't know that - so, we don't really know what it does. For all I know, it's an amplifier, they're not hard to design. What's more, I haven't bothered to see what circuit it hooks into, so I don't have a clue what voltage it is modifying, if that's what it does.
Someone with the proper equipment and who wanted to fork out the money to buy one could test the effect of this thing though.
Your point however, is well taken; I thank you for it. And, I just did refer to the ".pdf" you sent and, of course, you're dead on. One of these months, I need to find the time to read and reread the thing until I can quote it forwards and backwards. My "dipping" into it now and then is simply not hacking the program, is it?
- Jack
Last edited by JackandJanet; 10-08-2009 at 09:46 PM.
Reason: Added some thoughts
Location: Among javelinas and scorpions near Tucson, AZ
Vehicle: 2005 Ford F150
Posts: 3,134
Quote:
Originally Posted by budmur
Jack-
No worries, man. I re-read my initial response, and I did come across as a little bit of a jerk. That wasn't what I meant. I think everyone falls for snake oil, sooner or later. I know I have. Your attitude is best, just laugh at them.
me---->
Buddy
No Buddy, I didn't see you as being a jerk. I just know we're doomed to have these con artists with us all our lives. My gut feeling is, if we can react sarcastically to them anytime we see the tell-tail signs ("something for nothing", "miracle device", "an offshore fortune waiting if I can only have your bank account number", "call this number regarding your debit card", ... ), we educate the innocent folks who are seeing these scams for the first time and may be easily fooled.
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. - Scott
When someone can't write, I have trouble taking anything they say seriously. 
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