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Injectors
Fuel pump
Throttle body
High pressure fuel pump
Fuel pressure regulator
Fuel pressure sensor
Injector seals
Fuel rail
Hose, fuel overflow
Fuel tank
Fuel cap
Fuel tank breather valve
Fuel level sensor
Heat shield, injection system
Repair kit, injection nozzle
Accelerator cable
Pressure tank, fuel supply
Fuel pump gasket
Carburettor parts
Seal, fuel sender unit
Fuel pump repair kit
Seal, injection pump
Fuel cut-off switch
Control, throttle blade
Carburetor flange
Brake discs
Shock absorber
Brake pads
Control arm
Engine oil
Clutch kit
Oil filter
Turbo
Wheel hub
Wheel bearing
Replace a Spare part Throttle position sensor – a defective one or if the limit of use has been already reached. Find out useful information about Throttle position sensor
Throttle sensor failure
no sensor signal;
damage to the resistive layer;
incorrect regulation of the air supply.
Symptoms of throttle sensor failure
increased engine rpms at idling;
engine stop at idling;
engine shutdown when switching to neutral;
jerks at the start when the engine is cold;
«Check Engine» indicator reading;
slowing the car acceleration;
power loss.
Causes of throttle sensor faults
throttle malfunction;
wear of wiper coating;
ignoring the system operation rules;
ingress of foreign objects into the air intake;
use of low-quality components;
damage to the core tip;
wedge of wiper.
Diagnostics
One of the most accurate ways to determine the functionality of the throttle sensor is measuring the voltage at the contacts. To do this, turn on the ignition and set the voltmeter or multimeter probe between the mass and the wiper. When the throttle is closed, the voltage should be 0.7 V. Then you need to manually turn the valve to the open state. In this position, the voltage must not exceed 4 V. When you turn the valve and the sensor is in operating state, voltage changes gradually, without visible jumps.
You can also check the operation of related systems by installing a known good throttle sensor.
Lifetime of throttle resistive sensors is 20 000-50 000 kilometers. It depends on the manufacturer and the manner of operation. Proximity sensors can operate smoothly up to 200,000 kilometers.
Repair and replacement of the throttle sensor
Buying a new item is more convenient and advantageous than repair works of the sensor. The restoration work involves cleaning up polluted contacts and updating their isolation.
Appearance of the sensor voltage drops in operating positions requires only the part replacement. To disconnect the throttle sensor, remove the corrugated air intake pipe. Then unscrew the two screws and remove the sensor. When installing a new part it is necessary to monitor the correctness of the contacts connection.
Helpful tips on operation, causes of faults, troubleshooting, and service intervals
