How to remove injectors on a Lada Granta 16 valve

#1 Mikhail

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A friend of mine has been using the Lada Granta for more than six months.
Occasionally the check engine light would come on, but I told her not to bother, especially in the off-season. Moreover, the swearing itself goes out after a while.

The other day, after refueling (Lukoil, AI-95), not only did the icon light up, but the car began to noticeably kick and shake. Taking into account the automatic transmission, it’s completely unpleasant.

I went to the service.

The diagnosis was made: bad fuel, injectors need to be replaced. Moreover, the case is not guaranteed, pay half your salary to the cashier and then sue Lukoil, fortunately you have the check in your hands.

My friend was smart enough to refuse.

Then two options were proposed: ultrasonic cleaning or special washing. The second is cheaper and faster - so she chose flushing. We also changed the spark plugs.

Result: the check went out, the car drove well, my wallet was lighter by 3,000 rubles.

Now the question that has been tormenting me for three days: isn’t this a scam?

A full tank of fuel (allegedly the culprit) - no one drained it or even offered it.

I looked at the removed spark plugs - they are normal, well, maybe you can use a brush a little.

I myself was a bit of a mess back in the last century, so my knowledge is of little use.

Do you think the servicemen mocked the blonde, or does washing the injectors (without draining the fuel) on Grant make sense?

Source forum.zr.ru

Checking and replacing injectors on a Lada Granta car

Tools (for 8 valve engines):

Tester

Medium Phillips screwdriver

Medium flat screwdriver

5 mm hex key

Open-end wrench 17 mm - 2 pcs.

Tools (for 16 valve engines):

Tester
Medium Phillips screwdriver
Medium flat screwdriver
Open-end wrench 10 mm
Open-end wrench 17 mm - 2 pcs.
Ratchet wrench
Extension
13 mm head
5 mm hex key

Parts and consumables:

Injectors
Injector O-rings
Carburetor Cleaner
Engine oil
Rags

If the injectors on a car fail, the following signs of injector malfunction are possible: - difficult starting of the engine; — unstable engine operation; — the engine stalls at idle; — increased crankshaft rotation speed at idle; — the engine does not develop full power, insufficient engine response; — jerks and dips in engine operation when the car is moving; — increased fuel consumption; — increased content of CO and CH in the exhaust gases; — glow ignition due to leaking injectors.

In points where there are two photos, the first shows the process on an 8-valve engine, and the second on a 16-valve engine.

1. Disconnect the injector wire and engine harness connectors as described here (for 8-valve engines) or here (for 16-valve engines.

2. Perform an initial check of the injector windings. To do this, connect the tester to the connector contacts one by one.

The connector has five contacts: four for supplying a control signal to the injectors and one for common ground (a crimson wire with a black stripe is connected to it).

3. In turn, connect each of the four control contacts to the common contact and measure the resistance in each case.

It should be equal to 11-15 Ohms. If one or more measurements show resistance different from the specified value, some injectors are faulty.

4. To more accurately check the injectors, remove the fuel rail from the vehicle as described here (for 8-valve engines) or here (for 16-valve engines.

5. Remove the injectors from the fuel rail as described here (for 8-valve engines) or here (for 16-valve engines.

6. To identify a faulty injector, connect a tester to the injector contacts in ohmmeter mode.

It should show a resistance of 11-15 ohms. If the winding resistance is not normal, replace the injector, as it cannot be repaired.

In case of replacement, buy new injectors with exactly the same markings.

7. Check the injector for the shape of the fuel spray and for leaks at a specialized service station, since such a test directly on the car is very fire hazardous.

8. Whenever you remove injectors, be sure to replace the O-rings on all injectors on the fuel rail side and on the sprayer side.

9. If you are installing old injectors, carefully wash their nozzles with solvent or carburetor cleaner.

It is not allowed to wash the injectors by immersing them in a detergent composition to avoid damaging their electrical parts.

10. Install the injectors on the fuel rail in the reverse order of removal.

Before installing the injectors, lubricate the O-rings with engine oil.

11. Having installed the fuel rail on the intake pipe and connecting the pipeline to the fuel rail, start the engine and check the tightness of the connection of the pipeline and the injector seals.

The article is missing:

When to flush the injectors on a Lada Granta

The difficulty in diagnosing injectors on modern engines is that it is almost impossible to visually assess their condition without removing them. Signals about loss of injector performance can also come from the on-board computer.

In addition, the driver may notice a number of changes in the behavior of the car:

Increased fuel consumption.
Deterioration in dynamics.
Power drop.
Difficult cold or hot starting.
Dips, unstable operation in transient conditions.
Unstable idle speed.

Of course, there is diagnostic equipment, there are scanners and special programs for a computer or smartphone, which will also show that it is time to clean the injectors. Another thing is that not everyone can use all this, and not everyone needs it. And preventive maintenance will never hurt the injectors if the cleaning is done correctly and efficiently.

The optimal mileage between injector cleanings, as practice shows, is a maximum of 20,000 km, and preferably 12-15 thousand.

At the same time, experienced grant managers recommend cleaning the injector on both 8-valve and 16-valve engines, immediately before every second oil change .

Checking and replacing VAZ 2190 Granta injectors

Removal of fuel injectors on a VAZ 2190 Granta car is carried out to check them and subsequently replace faulty ones. To carry out repair work, you will need a five-point hex wrench, a screwdriver, a seventeen-point wrench and a tester to check the resistance of the windings. Checks for spray pattern shape and tightness should be carried out at technical inspection stations.

If you have everything you need, do the following:

We disconnect the connector with the power wires of the injectors and carry out their initial check. The block with wires has four connectors supplying impulses to the injectors and one common ground wire. We alternately connect one terminal of the tester to ground and the second to the terminals and check the resistance of the windings, which should be in the range of 0.011-0.015 kOhm. If there are deviations from the recommended values, then one of the injectors is faulty.

Now that the initial check has been completed, you can begin to remove them and determine the faulty one and replace it. To do this you need:

We press the lock and disconnect the connector with wires from the injector.
Next, use a flat screwdriver to pry up the spring retainer of its fastening and remove it.

We remove the injector from the fuel rail and do the same with the others. We connect a tester to its terminals and again measure the winding resistance, which should also be in the range of 0.011-0.015 kOhm. If the resistance is not normal, change it.

Each time you remove the injectors, replace the O-rings on the rail side and the intake manifold side.
Reassemble and install in the reverse order. Upon completion of work, start the engine and check the tightness of the pipeline connections and injector seals.

At this point, the repair work to check and replace injectors on the VAZ 2190 Granta car with VAZ 11183, 21116 and 11186 engines has been completed.

Repair of injectors VAZ 2110–2112

Repairing injectors means cleaning the product and replacing the O-rings. Simple measures to restore the functionality of the injectors can significantly increase the car’s power and make cold starts easier. Injector repair is possible in the following cases:

there are no visible deformations on the body;
the nozzle has not yet exhausted its service life;
the car owner wants to optimize the operation of the power unit.

In all other cases (cracks and deformations, long service life), it is recommended to replace the nozzles with new ones.

How to blow out and clean oil molds

On cars of the tenth family, injector cleaning may be necessary after 40–50 thousand kilometers. In this case, it is best to carry out the procedure yourself, since you can always observe for yourself the true condition of the motor and its elements, and also save a significant amount on service station services.

Many drivers prefer to use the simplest method of cleaning injectors - fuel additives. Special liquids, along with gasoline, are poured into the tank and pass through all elements of the fuel system, cleaning them. This measure is justified for new cars in which the degree of pollution is at a minimum level. But additives will not be able to properly clean injectors and other elements of the system.

Video: a simple way to clean injectors using a repair kit

Removing the fuel rail and injectors of VAZ 11183, VAZ 21116 and VAZ 11186 Lada Granta engines

Medium Phillips screwdriver
Medium flat screwdriver
5 mm hex key
Open-end wrench 17 mm - 2 pcs.

Parts and consumables:

Injector O-rings
Fuel injectors (if required)
Engine oil

Remove the fuel rail to check the injectors and replace them, as well as when removing the intake pipe.

1. Relieve pressure in the engine supply system as described here.

2. Remove the air supply hose with the throttle assembly as described here and here.

3. Using a flat-head screwdriver, press the retainer of the engine management system wiring harness block and disconnect it from the injector wiring harness block.

4. Using a 17 mm wrench, unscrew the fitting of the fuel rail tube, holding the tip of the fuel supply hose to the rail with a wrench of the same size, and remove the tip of the fuel supply hose from the ramp tube.

The connection is sealed with a rubber ring.

5. Using a 5 mm hex key, unscrew one screw each securing the ramp to the inlet pipe on the left and right sides.

6. By pulling the ramp along the axes of the injectors and overcoming the resistance of the rubber sealing rings of the injectors, remove all four injectors from the holes in the intake pipe. Place the fuel rail assembly with injectors to the left side of the car and remove it from the engine compartment.

7. Squeezing the spring clamp of the wiring harness block, disconnect the block from the injector connector.

8. Similarly, disconnect the wiring harness connectors from the connectors of the other injectors.

9. Use a screwdriver to pry the bracket that secures the injector onto the ramp and remove the bracket.

10. Overcoming the resistance of the rubber sealing ring, remove the nozzle from the ramp pipe.

11. Remove the other injectors in the same way.

12. Using the blade of a flat-head screwdriver, remove the rubber o-rings of the injector.

13. Replace the injector sealing rings with new ones.

14. Before installing the injectors, apply a thin layer of engine oil to the O-rings.

15. Assemble and install the fuel rail in the reverse order.

The article is missing:

Photo of the instrument
Photos of parts and consumables

Do-it-yourself injector cleaning VAZ

Carburetor cleaning fluid
5 cc syringe
2 wires
Set of tools

Cleaning VAZ injectors (2109, 2110, Kalina, Granta)

Now we will talk about self-cleaning of injectors on VAZ cars (2109, 2110, 2115, Kalina, Granta with 8-valve engines). How often should this be done? There is no clear answer to this question. It all depends on the quality of the fuel. But on average, it is recommended to clean injectors every 20-25 thousand kilometers.

But mileage is not the main indicator on which you should rely. The main thing here is to notice in time the incorrect behavior of the engine - floating speed, increased fuel consumption, dips in dynamics, etc. All of these factors may indicate clogged injectors.

You can clean the injectors without removing them from the engine by pouring a special liquid into the gas tank. But this method is not always effective. And, besides, we will not be able to personally see the result. Therefore, the second method is predominantly used - washing the injectors with removal.

There are two methods here - ultrasonic cleaning and cleaning with special liquids. The latter does not require particularly complex additional equipment, so it is better to use it yourself.

FUEL INJECTORS standardly installed on LADA KALINA GRANTA PRIORA

BOSCH injectors with catalog numbers 0 280 158 502 and 0 280 158 022 are also installed.

Bosch 0 280 158 022

Bosch 0 280 158 502

Bosch 0 280 158 017

These injectors have so far been encountered only once on the Kalina car.

“Thin” Siemens differ in the location of the nozzles, in 20734 all 4 nozzles are located in the same plane in a cone-shaped recess, and in 20735 they are spaced apart in pairs in two different planes (see photo). Such injectors are called “double-flare”, each torch pours fuel onto “its own” inlet valve, and not onto the partition between them.

“Thick” Siemens Deka nozzles are available in two types: 6393 (beige) and 20734 (yellow). It is unclear what caused the use of the same code (20734) for structurally different injectors. I don’t want to think that there weren’t enough numbers or imagination :). There is an assumption that the “thin” nozzles for some reason did not suit Siemens-Deka and they were replaced with ordinary ones.