The speed sensor is responsible for transmitting a signal to the controller, which displays the vehicle's speed. The good condition will determine how correctly the data is displayed, as well as how quickly they are displayed on the speedometer, so the importance of the speed sensor's performance can hardly be overestimated.
In a VAZ 2114 car, the speed sensor transmits data to the controller, which is responsible for supplying fuel at low speed. If one of these devices does not work properly, fuel consumption increases.
The speed sensor in a VAZ 2114 car is located at the top of the gearbox.
The main malfunctions of the VAZ 2114 speed sensor
Among the main malfunctions are:
- the speedometer stopped working;
- engine power has decreased;
- fuel is spent in a larger volume than usual;
- idle turns lead to the lack of engine performance;
- breakdown of the sensor drive;
- breakage of the plastic stem, if we are talking about the factory model.
Codes that indicate a breakdown: P0500 (no signal from the speed sensor), P0503 (intermittent signal).
Price and choice of speed sensor
The factory version of the speed sensor includes a plastic stem that can break quickly. On sale you can find a similar, but metal model, which has a high level of reliability.
High-quality sensors are represented in the following digitization "+", "-", "A", which is indicated on the block contacts. It is better to bypass the device, where it is indicated simply "1", "2" and "3".
There must be a spacer washer on the rod of the product, otherwise the sensor will quickly deteriorate. The stem should not rotate too much, this is permissible, but in moderation. Likewise, things are coming with a backlash. The average cost of sensors for a VAZ 2114 varies from 500 to 1000 rubles.
Replacing the speed sensor VAZ 2114
To replace the speed sensor, you need to carry out the following set of actions:
- open the hood;
- we disconnect the adsorber (this allows the replacement to be carried out as comfortably and quickly as possible);
- we find the wire that leads to the gearbox;
- We make our way further and stumble upon the speed sensor, it is located under the Drussel node;
- disconnect the block with wires;
- to disconnect the sensor, the spring clips must be pressed simultaneously;
- while the springs are clamped, unscrew the sensor;
- we take a new sensor, try to get into the center of the drive with the rod;
- when the hit is made, we twist the sensor and release the springs;
- we connect the block with wires.
Replacing the drive to the speed sensor
The drive to the speed sensor can simply break. In some cases, the teeth are grinded as it is constantly rotating. The speed sensor is attached specifically to the drive, so in order to disconnect it, you first need to remove the sensor itself and replace the drive. On the VAZ 2114, this is done by pressing the side latches. The connection of a new drive is carried out in the same way.
As a result of the replacement, you will receive a working sensor of the device, which will ensure complete safety of the car's movement. When driving for the first time after changing, it is recommended to pick up speed gradually.
