Many carburetor owners just dream of an injector. After all, there are almost no problems with it, because the injector does not need to be adjusted every time and does not need to be cleaned as often as the carburetor requires. However, not everyone can afford to purchase a new car with an injection engine. In this case, you can switch to the injector yourself. How to do it?
It is necessary
New parts needed, cotton gloves, tools, garage, gas analyzer
Instructions
Step 1
The process of converting a carburetor into an injector must begin with the search and selection of the injection system and all the necessary spare parts. There is a huge range of injection systems on the market, you need to choose the best option for price and quality. You can purchase the injection system that is installed by the factory on your model of car. It is also necessary to purchase the main spare parts, which must be of high quality and durable - the intake manifold, the receiver, the fuel line, the gas tank, the air filter and the housing for it. Everything else is small things that you can buy in almost every car dealership.
Step 2
Now you need to prepare your car for the procedure a little. For this you need to wash. And not only outside, but also the engine compartment. It will be much more pleasant to work with a clean car. And many of the units that you have to dismantle may end up in mud, which will greatly complicate the process. Also, do some procedures before disassembling the car - wash and dry the new gas tank. Cover it with anti-corrosion compound. Install an electric fuel pump in the new gas tank and do not forget to move the arrows on the tank and on the pump housing together. Check the ease of movement of the petrol level sensor float.
Step 3
Two small holes must be drilled in the cylinder block for the knock sensor and for installing the ignition module bracket fasteners. For this procedure, you must remove the bumper and radiator. You need to drill very carefully so that you do not accidentally drill through the cylinder block and make the thread correctly. The hole depth for the knock sensor is 16 mm, and for the ignition module bracket it is 20 mm. Also, before the drilling process, check if the cylinder block has a place for these holes provided by the manufacturer. It is also necessary to replace the coolant outlet and install a temperature sensor in it.
Step 4
Now we drain the oil from the system, dismantle the sump, toothed pulley, timing belt and replace the oil pump. You will also have to replace the standard generator. When choosing a new generator, try not to save money, as the electronic injection system consumes slightly more energy than the carburetor. Drain the gasoline tank and disassemble the standard fuel system. Remove the battery, fuel pump, distributor, air filter with housing, carburetor with manifold, gas cable (it will have to be replaced, since on injection versions it has a longer length), air flap control cable, engine compartment wiring of the ignition system, coil, switch, EPHX control unit, fuel pipes, gas tank, vacuum booster hose. You will also have to make a complete disassembly of the panel. Now you need to make a new harness, which will consist of two wires: +12 volts from terminal 15 of the ignition switch, tachometer input. For the light bulb indicating engine problems, run separate wires.
Step 5
Now use the MAMA (* pins) connector on one side and DAD (4 pins) on the other. We lay the ignition wiring harness from the engine compartment into the passenger compartment, fix it with special fasteners and connect it to the manufactured harness. Two separate wires of the injection harness (blue and blue with a black stripe) are connected to the mounting block. In the place where the fan relay used to be, we put a jumper or close the wires between ourselves that go from the carburetor to the fan switch. We attach the controller, relays and fuses in pre-prepared places. We'll have to make two wires connecting the dashboard (fuel gauge) with the fuel pump harness.
Step 6
It is also necessary to correctly lay the fuel line on the underside of the vehicle. This is the most difficult and time consuming process of the entire replacement procedure. It is necessary to carefully fasten the entire line to the bottom. Now we install a new gas tank and connect it to the fuel line. After that, install the air filter, branch hoses. You also need to install and carefully secure the hoses for crankcase ventilation and heating the throttle pipe.
