I'm not sure about this thing at all. The idea is that you plug it into your cars OBD2 diagnostics connector and it analyses your driving and engine performance, and then remaps your engines control parameters to make it more efficient.
The OBD port is fitted near the drivers position in all modern cars. It's an industry-standard communication port that allows mechanics and technically minded owners to access their vehicles diagnostic log and check the output of various sensors. Up to this point I was under the impression that it does not allow you to modify engine settings other than to reset warnings. The only possibility of this is where a manufacturer might use the OBD port to upload software into the cars computer, and it does appear that some models do allow that.
However, from what I've found online, the OBD port is not really suited to re-mapping engine characteristics.
Then comes the awkward situation of whether you should plug ANY device that claims to alter engine settings into your car. There are so many different makes and models of car that the software would have to identify the make and model, type of engine and the parameters it could safely change. You would then be relying on a bit of software of unknown origin that was basically messing around with settings in a vehicle that could damage it, cause it to malfunction suddenly while being driven, or even just brick the cars control computer completely. All these scenarios could result in thousands of pounds worth of damage.
So it's a surprise that the unit does have more than just some blinking LEDs, but also has all three main communication networks brought up to the PCB that has a processor and crystal on it. It does allude to the possibility that it is communicating with the cars computer. Whether that's to actually do functional things or just put on a show by activating various lights on the dashboard for show is hard to determine.
I'm not sure what to make of this. I certainly would NOT plug this into my own car in case it did cause irreversible misconfiguration of random settings. There's even a possibility that a very naughty bit of software could program in an extra key code to the security system as is possible on some BMW models. That could give thieves access to your vehicle with a "universal" key.
During my research on the availability of OBD based tuning software the sites I found were very much the hard-sell quack sites that keep pounding their message for a long time before finally getting round to indicating the price (usually at an amazing discount) and then try to stop you navigating away from their site by using suspicious pop-ups to block your exit and imply that a sales advisor is wanting to talk to you. Just the wrong type of site completely.
The only way to test this unit properly would be to use it with an engine simulator, and as that is very specialised I'm just going to have to go with a gut instinct on this one and say I wouldn't actually trust it.

12 thoughts on “Inside an eco obd2 chip tuner fuel saver.”
  1. Avataaar/Circle Created with python_avatars google user says:

    I just bought a used F150 truck and found one of these plugged into it. Then I watched your video and opened it to find that mine is totally different than yours. Mine has no chip and seems like it is just a little light! Chinese mind control!

  2. Avataaar/Circle Created with python_avatars Shaldur prime says:

    love how he's just itching to rip it open for the first half of the video

  3. Avataaar/Circle Created with python_avatars Melvin Whitmire says:

    I'm actually using the eco 2 green obd 2 fuel saver. It claims 15 percent better fuel mileage. While I am seeing a small amount of improvement it's definitely not 15 percent. I've been using it for about 2 months on my 07 ram 2500 with a 5.7 Hemi. I was averaging around 12.5 around town and 15.7 on hyway. Now I'm slightly better at 13.2 and 16.4. I'm a mechanic with almost 30 years experience and I know for a fact that most ECU's are locked and it can't be changing much. They definitely work but not at 15 percent as advertised.

  4. Avataaar/Circle Created with python_avatars Bob Miller says:

    You're a naysayer and should reprogram yourself to positivity. I recommend: "MINDSET SECRETS for WINNING" by Mark Minervini

  5. Avataaar/Circle Created with python_avatars DavePowza says:

    Hi. I put one of these on my car a while ago.

    Since my £30 a week has been a 3rd of a tank less every week. However that looks in quantity seems to last the same amount of time since the chip was installed.

    My car is automatic. And one thing that does seem to have happen is. That the car coast a lot longer. Infact I noticed I actually had to break a lot more to keep the car back.

    Also on the other hand if I say did want to boot the car, it seems to have a faster response and power outage.

    So I’m not sure.
    I’m actually thinking of removing it. And this is how I came across your video.
    So I could ask and you may not know.

    Would it be safe to simply unplug it ?

    The reason why. One other thing that seemed to have happened since I plugged in the chip.

    The air conditioning stopped working.
    So my thought are, is it the ship that has done that ? Or is it simply a case of I need a re-gas…
    Thanks.
    And great video… 👍👍

  6. Avataaar/Circle Created with python_avatars Ezhilarasan Ezhil says:

    Any different petrol save??

  7. Avataaar/Circle Created with python_avatars Alan Ryan says:

    Just tried mine, and a few blinks, the main led light is on all the time, tried resetting twice and no change whick makes thing a battery drain if nothing else, I really think this is a scam, and I can't afford to have this THING playing up with a management system that is actually working fine, so it is now unpluged for ever.Alan NZ.

  8. Avataaar/Circle Created with python_avatars Cindy Rogers says:

    I just tried putting this in my KIA and all it kept doing was flashing lights. I was not sure, so I went out to my car and uninstalled it. Not sure if it's a scam or not. I'm on a limited income, so I thought I'd give it a go; however, I can't afford to fix my car if this device caused me any car computer issues.😮

  9. Avataaar/Circle Created with python_avatars CeilingFan Music says:

    Were do you find the fake obd2 ones with the flashing leds? Im trying to make a fake computer that has flashing status leds to make it look like its really doing something but can't seem to find these cheep fake obd2 led flashing stuff

  10. Avataaar/Circle Created with python_avatars senoria walker says:

    How much is this

  11. Avataaar/Circle Created with python_avatars KeepSafe Systems says:

    I feel it is a scam. The interesting thing is, the version I got looks exactly like that on the outside but it is a single board on the inside with a button, LED and what appears to be a 555 chip. While the package is the same, the one I have is "fuel save pro" and the cover is not glued on

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