Do-it-yourself cable for gas equipment. Homemade diagnostic cable for LPG and more. Learning to make a universal cable with your own hands

The secret is that each manufacturer automotive gas equipment seeks to make a profit by selling additional equipment - special cables for programming controllers. If you are installing HBO, then you probably noticed that the vast majority of the installed equipment has two types of diagnostic connectors:

1) AGIS, ALTIS, STAG 150, OMVL - some other types HBO.

2) Zenith, Stag-300, Stag-4, and others (in the photo, the connector coming out of the control unit) ( pinout shown for Zenit system, in Stag +12 and Gnd are swapped).

The photo shows 4 wires included in the connector. Two of these wires (+) and (-), and two wires that carry the Rx and Tx signal. The whole difference is in the location of these wires in the diagnostic block, i.e. each manufacturer for the purpose of selling the cable own production arranges the contacts in the diagnostic block differently (for example, when the cable for the Stag-300 is connected to the Zenith, the cable is damaged because the positive and negative wires in the block are mixed up).

To solve the problem, it is enough to make a universal connector. For example like this:

In order to save yourself the trouble of repair cable at wrong connection before connecting with a multimeter, it is necessary to check the conclusions of the diagnostic connector on the equipment (some systems supply power to the diagnostic connector only when the ignition is on).

Correctly connecting (+) and (-) then connect the signal wires.

Sometimes there are cases when the diagnostic block is simply rotten or there is no longer a plus or minus on it. In this case, the power wires CABLE are connected to the battery, and only signal ones to the diagnostic block.

Warning

It is always necessary to carefully check the polarity of the power connection to the cable.

Where to get the Lovato-Stag cable terminal from

In the manufacture cord for diagnosing HBO, the question arises - "Where can I get a connector?". For HBO cable Lovato-Stag You can use the connector from the fuel pump of domestic cars - GAZ, VAZ. The full name of this connector is AMP series Superseal 1.5 (4-pin).

From what to take the terminal for OMVL and others.

Puzzling where to find the connector for HBO diagnostic cable OMVL, I came to the conclusion that it is unrealistic to find such a connector ... BUT, while doing a little revision in the wires, I came across a wonderful thing. Power connector motherboard from an old 300 watt power supply, an old system unit. and lo and behold! This connector fits with some modifications. Namely: first of all, you need to find a number of pins of the desired shape and then cut off the rest, unnecessary part of the connector. small photo essay. I apologize for the quality of the photo...

P.S. It is important that the pin configuration is exactly the same as on the factory cord.

Manufacturing schemes and cable testing for LPG

How to assemble cable for HBO diagnostics on Zenit and Diego Leonardo, Voila Plus, Millenium, Bingo, BRC, Diego, AKME, Digitronic, Vector, Altis, Agis, Zavoli, Nicolaus, Tartarini, Autronik (A-mon), Lovato (Lov-Eco2), Les 98 ( Landi).

My task was to collect cable for HBO diagnostics on Zenit and Diego (cable pinout not suitable for STAG, +12v and Gnd need to be swapped ). I started poking around on the Internet and found an intelligible answer - "take a k-l-line adapter and use it." I assembled the adapter from the master kit, let's connect it, but it does not work, even if it cracks !!!

I dived into the Internet and it turned out that all HBOs have a regular RS232 COM port. RS232 implies signals with amplitudes from -12 to +12 volts. And logical "1" corresponds to the level -12V, logical "0" - +12V. This is necessary for noise immunity, signals "around zero" are considered noise and are not used. There are no such signals in the block of gaseous brains. Such (or compatible) signals are (still found) in computers, but they are not in modern laptops.
In the gas control unit, the interface has output signal levels (roughly, not really) "0"=0V, "1"=5V (TTL levels). To do this, you need a TTL level converter on max232. It is this chip that is in data cables to HBO Lovato.

Disassembled photo HBO cable Lovato.

• Chip MAX23
• a socket for the MAX232 microcircuit (if you solder the wires directly to the microcircuit, you can damage it by overheating with a soldering iron or breaking it with random static voltage, so we buy a socket)
• Diode 1N4004 (I didn’t have it in the store, I bought 1N4005)
• Voltage regulator L7805CV
• Capacitor 470uF 16V
• Capacitor 47uF 16V
• 4 capacitors 10uF 16V
• DB-9F socket 9 pin (com-port female)

At home, I had a cord from a Siemens DCA-510 on a PL-2303 chip lying around, let's smuggle it and, miraculously, it worked, the software sees HBO.

And so in order - USB cable Any COM port is suitable for NOKIA DKU-5, CA-43 CA-45, etc., set the speed to 9600.

How to check if the cable is working - take yours cable connect to the computer close RX and TX open HyperTerminal in Windows XP in Windows 7 there is no HyperTerminal, but there is an option to rewrite two hypertrm.dll hypertrm.exe files from Windows XP to the same place and run it and everything works too

Open check your settings, put everything in the system by default Then run (Start -> Programs -> Standard -> Communications) HyperTerminal.

Set the default speed, as in the picture all the settings.

If you did everything correctly, then the program will print the characters that you enter from the keyboard.

Here is what the clamp looks like cables for HBO akme diego:

Terminal k HBO Zenit. Same terminal to AC Gaz Stag ( but +12 and Gnd need to be swapped ):

And here is the pinout of the DR-73 cable, this is a Stag (Digitronic) cable plus OMVL Lovato. Only +12V and Gnd are shown.

Nothing bad will happen if you mix up RX and TX. Be careful, measure with a tester where you have + 12v and don’t stick anything there (in your native wire it’s always black, then zero, and red is + 12v) there’s nothing complicated here, find 3 wires (zero) (RX) and (TX ) on your tester will show some symbolic voltage greater than zero. It is better to remove the key from the ignition before connecting cable to HBO then connect the USB and turn the key so that the tidy lights up and then start the program.

In any case, nothing bad happened to me when I connected the USB, and then the diagnostic connector, but it's better to do as I wrote above.

Remember that you perform all actions at your own peril and risk. The administration of the resource is not responsible for damage to your property.

If you are a professional or want to start setting up gas equipment, then this universal interface is exactly what you need.
The device is compatible with the following types of HBO
Firm / Model
AC / STAG 100, STAG 150, STAG L, STAG XL, STAG PLUS
AG / SIROCCO, RAZMUS, CZECH
AG CENTRUM / JZ-2005 ZENIT, ZENIT PRO
AG CENTRUM / JZ-2009 ZENIT, COMPACT, new SIROCCO models
BIGAS / SGlS N, ELC"92, ELC PEGASO
CARGAS / SOLARIS
EUROPEGAS / OSCAR N, OSCAR N MINI
D.T. GAS / DATEC BASIC, DATEC SUPE, GAS-TECH
ELPIGAZ / LEONARDO, MILENIUM, NICOLAUS, STELLA/ELIZA, VIOLA PLUS
EMMEGAS / ICS-03
KME / AKME, BINGO, BINGO M, S, DIEGO, DIEGO G3 (until April 2009)
LANDI RENZO / LAMBOA CONTROL A/1-V05-ER
LECHO / AGNES, MAXI-LAMBDA, SEC, SEQUEL, DREAM XXI N
LPGTECH / TECH 100, TECH 200, TECH 300
OPTIMA / OPTIMA 1.03
ATIKER / FAST, MULTIFAST, SAFEFAST
ESGI / ESGI
MILANO / MILANO
TAMONA / TG ​​STREAM NEW
PROTEC DIGITAL / ORION
OMVL/DREAM XXI-E
TAMONA / TGSTREAM, TGSTREAM-P, TGSTREAM-PM, PROGAS, PROGAS-P
TARTARINI / SEQUENTIAL (BLACK ECU)
VERSUS / VERSUS
ULTRA-GAS / ULTRAGAS OLD
UNIGAS / ISU
V-TEC / V-TEC
ZAVOLI / ALISEI, REGAL
A-MAX/KING
AUTOGAS ITALIA / EASY JET, DREAM JET, POWER JET
AUTRONIC / MISTRAL I, MISTRAL II.
CARGAS, Bardolini / NEW
EMMEGAS / ECU-07 ICS-03, ECU-07
MIMGAS / S2000U, MIMGAS_V1.20
Agis / OBD/CAN, Mini
BIGAS / SGISN, SGISN OBD...AEB GREEN
LANDI-RENZO / IGS, LES PLUS, LSI_NSI, LSI
LANDI-RENZO / IGSYSTEM, LCS/2, LCSA1/05, LCSE, LCS04
LANDI-RENZO / OMEGAS, OMEGAS PLUS, OMEGAS PLUS MAX
MINT-XI ULTRAGAS / MINT-XI ULTRAGAS
OMVL / DREAM XXI-N/P, DREAM XXI-N/P EOBD
ROMANO / RISN, RISN EOBD
ENERGY REFORM / ENERGY REFORM
TARTARINI / TEC 99 EVO
ULTRA-GAS / ULTRA-GAS, RSI+
VOGEL/VGI
AGIS / AGISM210, AGIS P13
AC / STAG 200, 300, 400, PLUS, PREMIUM, 4, ISA2, 400DPI, Q-BOX
KME / AKME, BINGO, BINGO M, S, DIEGO, DIEGO G3, NEVO (after 04.09)
LOVATO / FAST, SMART, EASY
VECTOR / VECTOR
4GAS / 4GAS
AEB / KING (found in older models adapter No. 1)

The set includes a table of adapter compatibility by color with each HBO, you simply select the HBO model and connect the connector of the corresponding color

The main distinguishing features of this model are:
- length 3 meters, you will not be tied to the car, but will be able to move freely when setting up HBO.
- the presence of several connectors, the connectors prepared for use already have the necessary pinouts and are marked with colors, which creates additional convenience in using the device, you do not have to look for the necessary pinout, you just select the ECU you need from the list that comes with the device and connect to it.
- the presence of a branded disk with necessary software, instructions and technical documentation for work. You no longer need to waste time searching, just select the desired item in the disc menu that is always at hand.
- workmanship, we responsibly approached the quality of components, due to which the wires have increased wear resistance in a car service, all connections are fastened with heat shrink.
- an honest guarantee for the device and technical support. We will tell you honestly about the operation of the device, and in case of difficulties we will solve them.

Very often, car owners of a car with HBO installed are faced with the need to view / correct some parameters of the gas “brains”. For this purpose, you need to have a special tester (which is very expensive and not economically feasible for private use) or you need a diagnostic tool in the form of a laptop with installed software and a cord for connecting gas "brains" and a laptop. Branded cords that are commercially available are not cheap, so you can try to make a cable for HBO with your own hands. How to do this and where to get the components of the future cord for HBO will be discussed in our article.

Cable assembly

Consider making a do-it-yourself HBO diagnostic cable for connecting a laptop to gas "brains" using the example of a HBO cord for one of the popular models of brains from the Polish company Stag.

Constituent elements

Actually, the diagnostic cable for HBO itself consists of:

A connector for connecting to the “gas” brains pad (in our case it is a standard one) a 4-pin waterproof automotive connector that can be bought at an auto / radio store or ordered from Aliexpress, as we did. The price of one connector was about 60 cents.

Next, we need another connector USB type And for the subsequent connection of the finished cable for HBO to the laptop. This connector can also be bought at the radio store or ordered from Aliexpress. This connector cost us $1.10.

You will also need a 3 or 4-core copper cable 3-3.5 meters long. It is advisable to use a stranded wire (so that each cable core is wound from several) - this will greatly extend the life of the finished cable in the future, due to the fact that the cores will break much less.

It is also better to buy heat shrink in the radio store (for cable insulation).

The “heart” of our cable for matching the signals of the laptop and the “brains” will be the PL2303 chip. It is best to buy not a “bare” microcircuit, but a ready-made USB to TTL module (it will contain the necessary microcircuit with the necessary additional elements soldered) in the same radio store or we order from Aliexpress. With us, this module came with a USB connector, it is best to choose just such an option, it is easier to assemble, and later such a cable for HBO will look much more aesthetically pleasing.

We collect the cable

Having prepared all the components, it remains to assemble them into a single whole. This must be done according to the diagram below.

In our case, everything is much simpler. Chinese manufacturer indicated in the documentation for the module the description of the connector and the corresponding wire color:

• black cable - GND;
• green - TXD;
• white - RXD;
• red - VCC.

Therefore, everything boiled down to crimping and soldering wires to a 4-pin connector. We used 3 wires:

When your car is not going well, constantly tormenting you with something, then you don’t get any pleasure from driving. By the time you get to work, you’re tired, you drive tired from work, you arrive like a squeezed lemon. And if the “CHECK” lamp is also on, then the mood drops below the plinth.

According to the correct engine error lamp, or it just goes badly, you need to head to the service station. As time and experience show, there are fewer and fewer professionals at service stations. Of course, there are also grandfathers minders who by ear determine the degree of compression of the head of the block, but what will they do with the smart electronics of modern cars? That's right, you need to go to the computer diagnostics. And you will be very lucky if you come across an intelligent diagnostician with knowledge of the structure of an internal combustion engine.

Once I got a Lanos car for a couple of weeks with HBO installed (gas equipment). The machine is not new, 2002, but it drives briskly, on gasoline. On the gas constant twitching, sluggish acceleration. In general, until you get to work through half of Kyiv, you will spend a lot of nerves. But when you go slowly in the suburbs - nonsense. Big city does not like a sluggish ride and I decided to drop in to the "professionals". Motorists said problems with HBO, gas workers - set it up first on gasoline. In general, a vicious circle turned out.

Decided to figure it out myself. Googling and reading the forums, I checked all the sensors - they are operational. And how to check the correct operation of HBO is a question. And the answer is this: you need a cable and a program in a laptop. Tamona Tgstream-PM gas brains, here is such a box:

Buying a branded cord - the toad is strangling, I didn’t want to buy a branded one either. And suddenly it doesn’t fit, you need to wait and it’s also worth the money. Googling the same Google, I read what can be done from a data cable from an old mobile phone. Interestingly, the cable from the mobile phone is suitable for the HBO controller. As it turned out, the HBO controller communicates with the PC via the UART protocol (in the common people rx-tx. And where can I get the data cable from the mobile phone? Where was it about 10 years ago, but now? Literally at the following link, the search engine suggests making a cable from a Chinese TTL to USB whistle. I unfortunately do not have this, I use USB ISP.

As it turned out, there are no radio amateurs among motorists, which is why I posted this article. Everyone cuts cables from mobile phones, they order exactly “specialized” adapters. BUT! All modern radio amateurs know about the existence of the Arduino platform. In particular, the Arduino UNO is programmed and communicates with a PC simply via a bare USB cord, and it is via the UART protocol. Any Arduino that is sewn without a programmer, on the board of which the CH340T chip is soldered, will do.

We collect our cord on the knee. A minute of work with a soldering iron, we need to short the reset pin to the ground, thereby turning off the microcontroller and, in fact, we get the same TTL to USB. We connect wires to pins rx, tx and gnd. We are looking on the Internet for the pinout of the diagnostic connector of your HBO. I have Tamona Tgstream-PM and here is its connector (male connector):

Tamona Tgstream-PM

Of course, I didn’t have such a connector. I took jumper crocodiles, “bitten” the wires from the arduino with one end, and the future plug that will be inserted into the connector with the other. The plug is an LED. Its two legs play the role of spring-loaded contacts. I isolate all nudity on hastily tape.

We shove our board into the case so that it does not short out. Well, that's it, the cable is ready!

Looking for and loading the right software. For HBO Tamona we download, for another HBO you will have to look for it yourself. We download the driver for arduina on the Chinese CH340T chip, there is a good instruction for installing it.

Now connect to the car. In the Tgstream control unit, the programming connector is combined with the control button connector. We disconnect it. first of all, turn on the ignition and look for the positive wire, find + 12V and firmly forget about it, in no case do we shove anything into it, otherwise we can even burn the laptop. +12 can be temporarily plugged with a match or a piece of toothpick, just in case. Next, we look for the ground in the connector and connect the arduino ground to it. Then we connect rx and tx in accordance with the circuit found or the method of scientific poke, they can be swapped and everything will be fine. The correct connection is indicated by a signal about established connection in the HBO setup program.

Well, that's actually the whole cable for diagnosing and programming HBO. And already look for how to set up a gas system on the Internet, here I am not an adviser to you. I can only say that, according to the tips and recommendations from the Internet, I managed to achieve excellent operation of the car on gas compared to the previous installations of crooked hands.

In the end, I spent as much as 0 money and 15 minutes of manual work on soldering and packing wires. The design does not shine with beauty, but if you need it right now and for free, then it will do. In my head, of course, the idea arose to make a normal cable. To do this, you will have to order a TTL to USB whistle and connector from China. According to the Internet, the connector comes from the fuel pump of a VAZ car.

In addition, I want to say that this cable can also be used to diagnose the car's ECU if the control unit supports the UART protocol.

Production of a universal cable for programming HBO controllers
The secret lies in the fact that every manufacturer of automotive LPG equipment seeks to make a profit by selling additional equipment - special cable for programming controllers. If you are installing HBO, you probably noticed that the vast majority of the installed equipment has two types of diagnostic connectors:

1) AGIS, ALTIS, STAG 150, OMVL are some other types of LPG.

2) Zenith, Stag-300, Stag-4, and others (in the photo, the connector coming out of the control unit) (the pinout is shown for the Zenit system, in Stag +12 and Gnd they change places).
The photo shows 4 wires included in the connector. Two of these wires (+) and (-), and two wires that carry the Rx and Tx signal. The whole difference is in the location of these wires in the diagnostic block, i.e. each manufacturer, in order to sell a cable of their own manufacture, arranges the contacts in the diagnostic block differently (for example, when connecting the cable for Stag-300 to Zenit, the cable is damaged because the positive and negative wires in the block are mixed up).
To solve the problem, it is enough to make a universal connector. For example like this:

P.S. It is important that the pin configuration is exactly the same as on the factory cord.
Manufacturing schemes and cable testing for LPG
How to assemble a cable for HBO diagnostics on Zenit and Diego Leonardo, Voila Plus, Millenium, Bingo, BRC, Diego, AKME, Digitronic, Vector, Altis, Agis, Zavoli, Nicolaus, Tartarini, Autronik (A-mon), Lovato (Lov- Eco2), Les 98 (Landi).

At home, I had a cord from a Siemens DCA-510 on a PL-2303 chip lying around, let's tuck it in and, miraculously, the software sees HBO.