Advice 1: How to check sensor throttle position

Sensor provisions throttle flap (TPS) in many cars is located opposite the control lever of the throttle flap. The purpose of this sensor is to determine whether valve is closed or not, and at what angle. TPS transmits information to the engine control unit, which based on these data, controls the operation of the injectors. This sensor need to check and adjust the instrument because it plays an important role in vehicle performance. Nothing complicated about checking the TPS is not.
How to check sensor throttle position
Instruction
1
Turn on the ignition and look at the instrument panel. Take a look at the light "Chek". If it is not on, and the notification of any fault, raise the hood and Podlasie to the sensor provisions throttle flap.
2
Grab a measuring device, preferably a multimeter. Check "minus". To do this, turn the ignition off and find the ground among the wires. Then you must make sure that the sensor is receiving power: turn the ignition on, locate the power lead. If both wires are found, it is very good.
How to check the sensor <b>position</b> and throttle <em>valve</em>
3
Check the contacts to open idle. They are second from the top or bottom of the sensor connector throttle flap. Connect one wire of the multimeter and the second slide valve. If the TPS is configured correctly, at the slightest movement, the voltage scale of the instrument will change abruptly to a value on the battery.
4
If the voltage increases smoothly or at all costs, try to check the film of the variable resistor which is located inside the sensor. Connect the multimeter to the remaining wire, turn the ignition on and slowly move the flap, keeping an eye on the instruments scale. Here, jumps should not be, the voltage varies very smoothly. If there is a race, the engine will not operate properly.
How to check the sensor <b>position</b> and throttle <em>valve</em>

Advice 2: How to check babineaux VAZ

Ignition coil (Babina) is an automotive alternator, which is one of the main components of the ignition system of the automobile engine. Babina transforms a sharp decline in voltage from the switch in the high voltage pulse.
How to check babineaux VAZ
You will need
  • - key end "10";
  • - the ohmmeter.
Instruction
1
First, inspect the plastic cover of the ignition coil for mechanical damage, cracks, dirt, leakage and overheating of the oil. If you found something, you need to replace the coil.
2
Check the ignition coil (Babin) without removing it from the car, but still, on the advice of experienced motorists, masters, best to remove it for easy access with your car. For removing, take the Allen key to "10".
3
As any Babina consists of primary, secondary winding and electrical connections, you must first check the resistance of the primary winding of the ignition coil, which receives intermittent low-voltage current. To do this, connect the ohmmeter to the low voltage terminals of your Babin. Remember that the resistance at 25 ° C shall be (0,42±0,05) Ohms at the ignition coil 8352.12 and (0,43±0,04) Ohms at the ignition coil 3122.3705. If it differs from the standard value, it is necessary to replace it.
4
Then you need to check the resistance of the secondary winding of the ignition coil (Babin), which is induced by a high-voltage current. To do this, connect the ohmmeter to the low-voltage terminal b and Babin to the high-voltage terminal. But don't forget that the resistance at 25 ° C should be (5,00±1,00) whom have the ignition coil 8352.12 and (4,08±0,40) com at the ignition coil 3122.3705. If it differs from the standard value, it is necessary to replace it. Most importantly - do not forget to remove the electrical connectors from the ignition coils.
5
And finally, you should check the insulation resistance to ground. And for this you need to connect an ohmmeter to the body Babin and alternately to each of its terminals. If the resistance of the ignition coil less than 50 MW, it means it is faulty and you need to put a new.

Advice 3: How to adjust the throttle position sensor

Sensor throttle position opens the damper and transfer the control information to the electronic engine control unit. The sensor is usually installed opposite the lever throttle control. Periodically, the throttle position sensor requires verification and appropriate setting.
How to adjust the throttle position sensor
You will need
  • - multimeter;
  • - the voltmeter;
  • - ohmmeter;
  • - the probe.
Instruction
1
The test sensor throttle position produce at the closed position of the damper. Observe the correct sequence of actions. Switch off the ignition. Install the damper position to the closed position (do not press the accelerator pedal).
2
Disconnect the connector of the sensor. Check the conductivity between the left two terminals of the sensor. If conductivity is absent, the sensor must be configured and adjusted.
3
Take a feeler gauge with a thickness of 0.4 mm between the lock lever and the lock screw of the throttle. With a multimeter (ohmmeter) check that the resistance between the aforesaid above the contacts was equal to infinity. Otherwise, we can conclude about the possible malfunction of the sensor. Before you change the throttle position sensor, try to set it up and adjust.
4
Sensor adjustment make also with the throttle closed and the ignition is off. Do not press the accelerator. Disconnect the connector position sensor throttle. Loosen the screws on the sensor without removing them completely.
5
Rotate the sensor until then while between the extreme left terminals of the device will not match the table to the value specified in the technical documentation. After reducing the parameters to tighten the screws on the sensor, hold the tool so that when tightening the screws he had not changed his position.
6
If you are not confident in their abilities or do not possess the necessary skills, leave the sensor setting the throttle position to a specialist workshop. Installation and configuration of the sensor is carried out initially at the factory, so that in the ideal embodiment, the sensor needs to re-tune only by trained professionals, of course, if you expect to ensure a high quality of adjustment. Incorrect setting detrimental to the efficiency of the engine.

Advice 4: How to check vehicle sensors

Modern fuel injected engine is controlled by many sensors. But the electronic system, engine control may not always be the cause of his failure. So, before you inspect the condition of the sensors, verify the health of the rest of the parts and components of the power unit. The only fact that points directly to the fault of any sensoris lit-up on the instrument panel Check Engine lamp.
How to check vehicle sensors
You will need
  • - tool for the dismantling of the hinder parts; - ohmmeter (multimeter).
Instruction
1
Sensor throttle position (TPS) is a variable resistor. To check it, measure the resistance between its terminals. The reading will compare with factory values specified in the operating instructions (on different machines, different sensors). The discrepancy in 20% consider normal. Also a faulty TPS can specify the instability of the idle jumps while speed is increased.
2
The knock sensor without specialized equipment could not be verified. An indirect sign of its failure, excessive detonation when the engine is running. For diagnosis and sensor replacement please contact the staff. The same applies to the sensor of phases timing. It is installed only on engines with four valves per cylinder. Its verification is done using special diagnostic devices.
3
If the engine refuses to start, it is a symptom of the crankshaft position sensor. This sensor only in case of breakdown which the engine refuses to run. To spend an additional check, measure the resistance between the terminal in advance of unplugging the connector. Normally, this figure should be 550-750 Ohms.
4
Also cause malfunction of the crankshaft position sensor may be a controller mounted on the driving drive pulley of the crankshaft. A rubber damper mounted on a gear wheel of the controller can be rotated relative to the pulley. To test this, locate the marks on the camshaft and the flywheel. By the way, the mark on the flywheel duplicate the mark on the crankshaft. If the movie is correct, these marks are the same, but between two missing teeth between the reluctor wheel and the axis of the crankshaft sensor fits 19-20 teeth on the toothed wheel.
5
To test the sensor mass air flow disconnect pad wires suitable for him. Then measure the resistance between the terminal indicated in the circuit of the electronic engine control, and ground. Usually it should be 4-6 ohms. Either remove the sensor from the opened motor. The engine will not lower the rpm less than 1500. Also a defective MAF sensor is unstable operation of the power unit, hampered its start-up, delays, jumps, dips while moving, lack of power and traction of the car.
6
To verify proper speed sensor, go to neutral while the vehicle is idling. With proper sensor the revs will increase slightly. On cars VAZ-2110/2111/2112 when a faulty speed sensor stops working speedometer.
7
To check temperature sensor coolant look in the documentation for the repair of a special table. The temperature change in the cooling system must be accompanied by a change in resistance of the sensor according to the table.
8
Oxygen sensor check by measuring the resistance of the heater, previously unplug the connector. The result should be from 0.5 to 10 Ohms depending on the sensor model. Search for accurate data in the repair instruction. Also to check, remove the connector from the sensor, turn the ignition on and measure the reference voltage of the controller, crankshaft position sensor, it should equal 0,45 V.

Advice 5: How to check ignition module VAZ 2110

Faulty ignition module can fail at the most inopportune moment. Diagnostics and Troubleshooting will take about an hour, but it will allow us to react to development problems.
The ignition module for engine: VAZ higher tenth of the family
The main symptom of ignition module on VAZ 2110 is the lack of spark in one or more cylinders. Because of this, the engine troit, or does not start. Another common - shot down in time of the ignition cycle, which is impossible due to coordinated work of gas-distributing and piston system with the block plugs. Methods of determining malfunctions of the ignition module, there are several.

Check spark


This method is most suitable to check the ignition module VAZ 2110 in the field. You should always have a set or at least one new spark plug repair kit for car. Cover cylinder head alternately remove candle covers, inserting in them the new plugs that are grounded to the case or ground. If the rotation starter there is no spark, then the problem lies not in the candles and should further investigate the ignition system.

For this you can try to replace the high-voltage wire of the dome, on which there was not spark when the engine is started. With the distributor or module, remove the protective cover and number of contacts by the number of cylinders to which they are connected. After that you can remove a wire from a known working connection and put in hours testing so the integrity of the veins and the condition of the connector contacts. If the spark appeared, then the problem lies in faulty high voltage wire. In that case, if the problem persists, you may have deep repair or replace the ignition module.

A common fault is the ignition module


If there is no spark at all spark, a high probability of failure of circuit breaker or high voltage coil. In cars with injector fuel supply may be hit by the electronic control system of ignition and fuel supply that has the same characteristics as the failure of the distributor to the carburettor cars. The latter are easy to repair. Just remove the cover and the case cover of the distributor, then check the status of the contact group: the presence of soot, there is no electrical contact, the overall condition of the device. Very often the distributor fails due to faulty capacitor that is connected parallel to the power supply circuit. Its malfunction leads to increased sparking and rapid wear.

Method of substitution of module and high-voltage power lines


In some cases, much faster to replace the ignition module and high voltage wires on the same items, taken from the car of the same brand. The whole procedure takes up to one hour: the distributor or module to disassemble quite easily, the main thing is to note the conformity of the output contacts numbers of cylinders on the engine. In most cases this operation helps to identify the General ignition system condition without numerous time-consuming operations.

Advice 6: How to adjust position sensor throttle

Sensor throttle position (TPS) is mounted opposite the lever of its management and designed to determine the opening angle of the flap and transmitting information to the electronic engine control unit. Electronic control unit for automatic gearbox also uses the output of this sensor.
How to adjust position sensor throttle
You will need
  • Multimeter (voltmeter and ohmmeter).
Instruction
1
Remember that the terminals of the sensor throttle are very different depending on the make of the car and installed the engine. They connect to the engine control unit and the automatic transmission, even on tcm. Contacts VC and E2 – positive and negative power wire of the sensor. Contact IDL transmits a signal about the beginning of the throttle. Contact VTA sends a signal about her degree of opening.
2
To adjust the contact IDL on most cars is sufficient to set the initial position of the contact. To do this, adjust the clearance between the throttle valve and its stop screw. The size of the gap will be explained in the instructions for repairing your car.
3
Connect a voltmeter to terminal VTA. When pressing and releasing the gas pedal the voltmeter should change simultaneously with increasing and decreasing pressure on the gas pedal. If this does not occur, or the voltage varies with surges or failures, replace the sensor.
4
The voltage of the terminal VTA should be 0,42-0,48 In the ignition. A specific value will be explained in the repair instruction. To adjust tension, loosen the 2 screws on the side of the sensor, not Obrucheva them to the end. Ignition on, easy postukivanie screwdriver on the sensor in direction of rotation until the desired voltmeter.
5
Tighten the screws. Check the voltmeter after several abrupt opening and closings of the throttle. On vehicles with automatic transmission start to slowly open the choke. When the voltmeter is 0.55-0.6 V must be heard silent buzzer solenoid box. Otherwise, look for a fault in the connection to the control unit transmission.
6
Connect the ohmmeter to terminals IDL and VTA. Loosen the sensor mounting bolts. Rotate it 30 degrees to the right, and then slowly return back to until the ohmmeter will not show the presence of flowing current. Insert the needle of 0.7 mm between the stop screw of the throttle and the thrust lever. Current must stop. If not, repeat adjustment. Tighten bolts with effort of 2 Nm, without allowing displacement of the sensor.
Useful advice
Always use an accurate multimeter when adjusting position sensor throttle. Otherwise, errors will occur in the engine control unit. The unit will either be wrong to adjust the operation of the motor or does not take sensor readings.

Advice 7: Where is the idle sensor

Many car owners, independently engaged in repair of their cars and for the first time faced with unstable work of the engine idling, in search of information on the subject are turning to the world wide web and often get from the regulars of the forums, unambiguous advice to replace the idle sensor. However, if you are the owner of exclusive cars or used Rover sample 1969, know this: no idle sensor under the hood of your car and you will not find...
The IAC valve, often mistakenly called sensor IAC
The fact that to find idle sensor in the car is equivalent to searching for a black cat in a dark room - in both cases, the desired object just doesn't exist! The IAC valve (so properly called the element management system) refers to a category of actuators that is not the same as the sensor. Its task includes a function of maintaining specified engine rpm by closing the so-called bypass air channel for regulating the flow of air to bypass the throttle valve.

How does the IAC ?



Costructive the IAC is a stepper motor with two windings, a controlled pulse voltage, which is generated by a special driver which is part of the control unit. Unlike conventional rotary electric motor supply voltage is not the rotation of the shaft, and its movement in the longitudinal direction in one direction or another. The stem (shaft) of the motor fixed plastic conical plug, which changes the cross section of the air bypass channel. To clearly assess the condition of the IAC without special equipment is very problematic, but if the engine is idling has become unstable, and the motion felt jerky and failures, it's a reason to think about replacing the IAC.


Where to find the IAC ?



For visual detection of IAC is sufficient to find the eye-catching air filter and trace the direction of the thick rubber pipe, air inlet to throttle knot.
The location of the regulator of the twentieth in different cars, of course, differs, but, typically, it is mounted directly on the throttle node, which is located inside the same valve.

At the same node is a sensor throttle position TPS, which looks similar to the IAC.
Not to confuse IAC with the TPS, remove the connector from one of them and estimate the number of contacts. If the three of them, then it's the TPS, if the four - IAC.
By the way, when you replace the IAC often have to remove the whole throttle unit due to the fact that the characteristics of the mounts do not allow for its removal directly on the engine. Find the right information at the sequence the only step-by-step illustrated instructions for your model car, however, if you lack the necessary skills it is better to contact customer service.
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