Life hack: Priora car ignition coil for 16 valves, its price and design


To go, you need to start! The ignition coil of a Priora car is not expensive. Its price for VAZ 2170 is from 2000+ rubles. On some machines this is a sore part that constantly breaks down. On a Priora with a 16-valve engine, there are about 4-5 analogues of this part.

Read the article to the end and find out how to check its performance and which one is better. Starting the engine of a Lada Priora car is a difficult procedure, which involves several parts and assemblies at once. At the same time, the standby engine start is carried out very quickly. At this time, several small subprocesses take place, and one of them is the creation of the first spark to ignite the fuel-air mixture.

To create a spark, it is not possible to place an open fire under the hood. The injection engine has become more “advanced” compared to its carburetor predecessor - it uses ignition coils, one installed with each cylinder.

An incident may occur, causing the engine to start “unevenly”. You will have to immediately look for how to check the elements of the ignition system. If it turns out that the problem is in these small parts, do not rush to despair, because in stores there is a good standard ignition coil for Priora 16 valves, the price of which is comparable to analogues. The wires to the ignition coils are an equally important component, which if it doesn’t work, you won’t go anywhere.

Basic faults

A normal Priora part should last from 50 to 100 thousand kilometers, depending on how often you start the engine. If an element of the Priora ignition system malfunctions, the following symptoms will occur:

  • When accelerating, the car will jerk (as if the box is kicking in a car with an automatic transmission), or when driving in first or second gear.
  • The integrity of the winding is broken. It is worth paying attention to the tip of the ignition coil of the Priora car.
  • The motor "troits". This manifests itself in vibration and excess noise that appears under the hood, while traction decreases.

Design


Disassembled module Structurally, the ignition module includes two main elements:

  • 2 ignition coils that generate high-voltage pulses directed to the spark plugs;
  • Dual channel switch.

The reasons for failure can be different, ranging from interruptions in the operation of the engine, ending with an unexpected stop of the power unit. Please note that the "Check Engine" light does not turn on.

Design and principle of operation

So, starting the engine begins with turning the key in the ignition switch. At the same time, current must flow to the spark plugs, they give a spark to the fuel-air mixture, which is pumped up by the pump, the starter begins to rotate, causing the crankshaft to start moving. But the battery operates with low voltage electrical current.

Each coil is a small transformer. Two levels of winding are hidden under the housing of the element of the VAZ-2170 Priora ignition system. Its wires are low-voltage and high-voltage. The first ones receive current from the battery, the second ones transmit it to the spark plugs. When the current is converted, it is transferred to the spark plugs. The ECU “manages” this process, correctly distributing the force between the spark plugs.

As for how many ignition coils are in the Priora, there are 4 of them - one for each cylinder. Their work does not mix or overlap in any way. Each of them has “its own scope of work.”

Manufacturers and prices of analogues - which ignition coils are better for the Priora

No one, not even AvtoVAZ, promises that the analogue will work as long as the standard model. There are a sufficient number of options on the market. It will take quite a long time to determine which is better. The following components are suitable for Priora 16cl:

  • SOATE (manufactured in Stary Oskol) (article 2112-3705010-12), price – 1,200 rubles.
  • MZATE-2 (article 59.3705), price - 1,000 rubles.
  • Baker Priora 2112-3705010-10 – 1100 rubles.
  • Fenox IC16085 (STK) – 1,300 rubles.

Performance check: how to check ignition coils on a Priora

Before you start replacing the ignition coils, you definitely need to check them and inspect them. Cracks, chips, and other damage to its body are unacceptable. If you see that the plastic is damaged, it means the part has overheated and cannot be used further.

The answer to the question of how to check an element of the 16-valve Priora ignition system is not limited to inspection. First you need to swap them and see if there are interruptions in the other cylinder. If there are interruptions, the problem is in the coil. There are several ways to use devices. To work you need:

  1. Secure the car in place and turn off the engine.
  2. Remove the negative from the battery.
  3. Disconnect the part from the motor, and then connect a fully functional spark plug to it.
  4. Turn off the fuel pump.
  5. Use protective equipment against electric shock, this is a must!
  6. Turn on the ignition and crank the starter. The spark plug should spark during normal operation.
  7. Sometimes repair of the Priora ignition coil begins after receiving data from the ECU. The codes start with 0301 and end with 0304, indicating each cylinder accordingly. However, the problem is displayed in the coil-plug module, so the culprit will have to be found out separately.

Now we check the ignition system element on the Priora with a multimeter. For this and further work with components, models AZ-1 or MD-1 are suitable. For this:

  1. Remove the part to be examined from under the hood.
  2. Set the measurement switch to the “200 Ohm” position, connect the probes. The display should show “0” or values ​​close to it.
  3. Using probes, the external winding is checked. Pinout – 1.3. The display should show exactly 0.08 Ohm. The error is the number that the display showed during calibration; it must be subtracted. If nothing is shown, check that the probes are accurately touching the winding. If there is contact, but there is no result, the winding is broken and needs to be replaced.
  4. Set the multimeter to 2 MΩ measurement limit to test the high voltage winding. Connect the black probe to the terminal of the second connector, and the red probe to the terminal of the coil. The indicator should be 342 kOhm - but only for a cold part. It should be cooled before testing. This also requires checking the exact contact with the probe.

Remember that the winding of this spare part does not change, but the tip can be easily changed. Most often, repairs are limited to routine replacement - in order to be completely sure of the tightness of the part.

Checking the ignition coil with a multimeter

Checking the voltage at the terminal block of the wires:

  1. Disconnect the block with wires from the ignition coil (on the H4M engine, to access the coils of cylinders 1 and 2, remove the intake pipe).
  2. Turn on the ignition and measure the voltage at terminal 3 of the wiring harness block (the numbering of the terminals is on the ignition coil).
  3. The voltage at the terminal must be at least 12 V. If it is less or absent, it means the battery is discharged, there is a fault in the power circuit, or the engine control unit (ECU) is faulty.
  4. Turn off the ignition.

How to check ignition coil resistance:

  1. We set the switch on the multimeter to the 200 Ohm position and close the probes (the instrument error will be displayed on the screen, which will need to be subtracted from the readings during testing).
  2. We check the primary winding of the ignition coil by connecting the probes of the device to the contacts.
  3. The resistance between pins 1 and 3 should be close to zero (about 1 ohm).
  4. The resistance between pins 1-2 and 2-3 should be high (tend to infinity).

  1. Set the switch on the multimeter to the 2000 kOhm (or 2 MOhm) position.
  2. We check the secondary winding of the coil by connecting the red probe to the spring inside the rubber cap, and the black probe to pin 2.
  3. For good contact, it is best to remove the rubber cap from the coil and connect the probe directly to the coil contact, having first cleaned it of deposits.
  4. The resistance should be about 300-400 kOhm.

Attention! The resistance of the secondary winding of the ignition coil is highly dependent on its temperature. Carry out the test when the coil is completely cool. Compare the resistance of all four ignition coils to each other. A faulty ignition coil can be identified by very different values, provided that all coils are from the same manufacturer.

The process is also shown in the video:

Checking the ignition coil yourself. Video instruction ZR:

The simplest way to check the ignition coils is to swap them. If misfires change the cylinder, then this coil is not working. To more accurately determine the fault, special equipment should be used (for example, a spark gap or an oscilloscope).

Let us remind you that you can find a problem in engine operation by independently measuring the pressure in the fuel rail, or by checking the compression in the cylinders.

In general, a friend brought me his fancy multimeter and we called the coils... 1) First of all, we call the primary winding of the coils, to do this we connect the probes to the outer contacts of the connector, no matter what polarity... A 200 Ohm cartoon...

Removing and installing a coil on a Priora

To change the ignition system element in a 16 valve engine, follow these steps:

  1. Park the car level, securing it with the hand brake.
  2. Raise the hood and remove the negative from the battery.
  3. Undress the motor by removing its plastic protective casing.
  4. Find the spare part you need, and then the wire block connected to it.
  5. Squeeze the wire block clamp and turn off the power.
  6. Using the 10th key, unscrew the bolt that secures the part to the metal.
  7. Carefully remove the spool, trying to move it vertically. It would be a shame to damage the wiring at the very last moment.
  8. Remove the faulty part and replace it with a new one. Tighten the fastening bolt, connect the wire block and place the negative on the battery. Check functionality.

The procedure for removing and installing the ignition coil on a Lada Priora car with a 16-valve engine

Since the vast majority of cars are equipped with 16-valve engines, the whole process will be shown on this particular power unit.

So, first of all, open the hood of the car and disconnect the “-” terminal from the battery. Then unscrew the filler cap.

Also, disconnect the adsorber purge valve by bending its fastening clamp slightly to the side. This valve is located on the right rear side of the cover (in the direction of travel of the car).

Now you can remove the decorative engine cover, since nothing else holds it.

Using a ratchet socket, unscrew the bolt securing the coil we need, as shown in the photo below.

And then we remove this part from the spark plug well.

Since the coil sits quite tightly, you will have to apply at least medium force to remove it from there. And in order to completely release it, it is enough to disconnect the plug with the power wires, after first pressing the latch.

And disconnect it completely, as can be clearly seen in the photo below.

Now you can take a new, known-good ignition coil and install it in the reverse order. The price of a reel for Priora ranges from 900 to 2000 rubles, depending on the manufacturer.

Lada Priora has everything you need for ease of use of the car:

The ignition coil is the most important component of the car, and its failure will cause a huge amount of trouble. Mostly they will be associated with stopping and disturbances in the operation of the engine. The ignition coil is directly related to a unit called the “distributor”.

This is a distributor that receives low-voltage power from the vehicle's on-board network. The process of converting low-voltage into high-voltage power occurs. From the contacts of the distributor, the voltage is sent via a “slider” through a high-voltage wire to the spark plugs. The screwed-in spark plug of each cylinder supplies a spark to the combustion chamber of the fuel mixture, and ignition occurs. For ignition, current must be supplied to all spark plugs, only then will the engine start and the car begin to move. If not, the vehicle will not move.

Sometimes the engine of a Lada Priora car starts to misfire, in other words, the engine does not perform its functions at full capacity. The reason for this behavior lies in the electric ignition coil. The ignition system of this car is unusual. Each spark plug has its own coil, therefore there are 4 of them. This means that the ignition can be slowed down four times more often than on other cars. Once one coil fails, the cylinder associated with it stops working. Individual ignition coils for any cylinder require no adjustment because they have no moving parts. In a Priora car, the ECU informs the driver about a malfunction and monitors the distribution and moment of spark formation. In the cylinders in which the compression strokes end, sparking occurs. Precise pulses are supplied to the ECU from the crankshaft and camshaft position sensors, after which the control unit detects the sequential firing of the ignition coils. The information transmitted to the system allows you to manage the entire process:

If you have problems with the coils, you need to seek help from a specialist. To check the ignition coil on a Priora you need a special tool - a multimeter.

Rating
( 1 rating, average 5 out of 5 )
Did you like the article? Share with friends:
For any suggestions regarding the site: [email protected]
Для любых предложений по сайту: [email protected]