ECO OBD2 Fuel Saver Busted - Voiding Warranties Ep 6 - YouTube

today on voiding warranties I'm going to test this chinese-made fuel saver and

see if it actually lives up to the hype

avoiding warranties is proudly sponsored by no one because no one will let us

have their products and use them in unintended and unimaginable ways

all right i have the package right here let's take a look

two year warranty money back guarantee

i think i've actually had the cardboard out of this because it's upside down now

fifteen percent fuel save plug and drive obd2 economy chip tuning box benzene

cars patented eco obd2 alright so when I first first saw this on someone else's

channel I thought hmm i wonder if this could possibly do anything so I came up

with a few ideas for how this could work

let's start with the easy stuff idea number one

it automatically clears out any obd two errors you have so many check engine

codes

it clears them out now some check engine codes can actually drive other things to

happen

like if you have a check engine code for a bad catalytic converter it could

potentially affect your fuel economy

now let's see what else could this do to make it work well it could actually

reprogram your car and and make it more fuel efficient at least that's what the

hype would lead you to believe but when the obd2 protocol came out it was very

specific that you couldn't reprogram your car with it

now you can reprogram your car through the can bus with a special reprogramming

tool but that's not going to work on a broad variety of cars like this claims

so I'm kind of skeptical about that

another thing that this could do is it could send false information and it

could send false information on the can Network the controller area network on

the car now this could potentially save save you some fuel

it would have to it would have to be faking some sort of other sensor in the

car

but that would that really be a nasty affected to try on the on the network

and since i first tested this the the news about volkswagen came out and I

came up with another idea

this little device could trick your car into thinking it's doing an emissions

and fuel economy test so it tricks your car and going into a more economical

mode by giving it some sort of data like scanner would that was being used in one

of these tests and there's one more option

this thing could do absolutely nothing but you know what I don't have to test

this on my car because i have a car simulator

this simulates a car ECU well enough that I can trick this bluetooth based

car scanner

it's Annie LM 327 just a Chinese knockoff

I can trick this into thinking it's actually communicating with a real car

now

this is using the can protocol and a lot of cars on the market use that there are

other protocols that are out there but this is the one that I'm familiar with

and if this thing uses a LM 327 based Chipwich it's a cheap Chinese throw down

then it should be able to communicate with all the same protocols this chip

can which include can protocol and this is the only protocol my car actually has

and it says it will be compatible with my car

let's read right here eco obd2 fits all car from the year of 1996

I'm assuming that's 1996 on it works based on obd2 protocols as remapping the

car's computer ECU after driving 200 kilometres road total eco obd2 adjust

itself to the car

according to the drivers habits and always keeps remapping the easy you to

save fuel lower and emission

that's not a mission that's a mission

all right so let me fire this up and just show you that it works in the first

place

I've got to provide a 12 volt power to the obd2 scanner

because it's simulating actually connecting to the car and now

all right so I open up torque torque defaults to the device

it's scanning for the car i'm watching it scan on the computer

all right torque is pulling the ECU

come on ok there it goes

now i have the set up to where it will give a random RPM signal this random RPM

signal is just to show that it's running working and what not

it also sends a random intake air temperature sensor coolant temperature

sensor and several other parameters

it's just simulating a basic ECU and just some random data from it

all right now that I've showed you that this can work and I can simulate an ECU

let me go ahead and reset it

now i'm not going to have the bluetooth based obd2 scanner connected for this

the reason I'm not having it connected is simple you can have collisions when

you have two things in the diagnostic port

it's not an issue of having multiple things on the can bus

it's an issue of how they use their protocol to get information

these things do it and kind of a stupid way they send a signal pulling the

information and then whatever they receive back with the right address they

accept as the information they were asking for

now the actual can protocol has the information that it is labeled but this

thing doesn't check to make sure it's what supposed to be receiving so it just

passes it on

so if you have multiple things using the diagnostic ID you can have issues

all right now let's connect the fuel saver up and see what happens so

all right i'm not sure how much I missed back there but we have this thing

connected up

let's go back and try this one more time I'm going to press and hold the reset

button for about five seconds

maybe I didn't do it long enough the first time one one-thousand two

one-thousand three one-thousand four one-thousand five one-thousand six one

thousand

oh well that reset button got hot when i did that huh I wonder if that's some

sort of short to ground huh

that would be just a bad design all right so it went through the reset

it's now scanning for the computer using all the protocols it has at its disposal

let's see if it actually gets a connection this time

yeah I'm getting bored watching this -

and it's live for me

let's just let it finish its cycle

I'm tired of holding it

hope

it finished whatever it's doing it's done and have we gotten any more data on

the can bus new I've actually seen multiple other modes on this I've seen

it where the flashing light goes out and the green light begins to flash

I've seen them both flashing at the same time I honestly think it just randomly

flashes things and it resets whatever it's doing if when you press the button

and as you can see from the computer monitor

absolutely nothing has gotten sent from this thing and it's not requesting any

data whatsoever

all this does if you plug it into your car is flash its little lights and make

you feel like you're saving fuel and I guess for some people that's good enough

because people put magnets on their fuel lines and then claim to get better fuel

economy from those this is never going to actually reprogram your car because

it can

it definitely couldn't do it on this wide range of course if you ever look at

any actual car programmers they only work for a handful of models even even

the Ford stuff that also covers mazda it's a different protocol for different

model years of car

so having one little thing that you can buy for ten bucks that's going to

reprogram your car is pretty unlikely if you liked this episode of voiding

warranties please click like and if you really want to see more of them

please click Subscribe