ODM Throttle Position Sensor 2112-1148200 For Lada Samara FORMA Niva

The sensor operates by detecting the throttle valve position and converting mechanical rotation into an electrical signal. The signal voltage varies proportionally with throttle opening, providing the ECU with continuous, real-time data for fuel injection and ignition timing adjustments. The high-reliability mechanical design ensures smooth operation and long service life, even under demanding driving conditions.

The Throttle Position Sensor 2112-1148200 is identified by the following Original Equipment (OE) reference numbers and cross-references:

Cross-Reference Numbers:

Common Reference Designations:

• Throttle Position Sensor (TPS)
• Датчик положения дроссельной заслонки (Russian)
• Throttle Potentiometer
• Accelerator Position Sensor

The Throttle Position Sensor 2112-1148200 is designed for compatibility with Lada (VAZ) vehicles, a prominent Russian automotive manufacturer. This sensor is widely used across multiple Lada models equipped with electronic fuel injection systems.

Lada (VAZ):

Additional Applications:

• The sensor is also used in DIY individual throttle body (ITB) assemblies and various custom engine management applications
• Compatible with vehicles equipped by electronic fuel injection systems

Important Compatibility Notes:

• This sensor is an Original Equipment (OE) number for Lada (VAZ) vehicles
• Compatible with both manual and automatic transmission variants
• Always cross-check the OE reference number against the number found on your current unit to ensure proper fitment
• The sensor is mounted on the throttle body of the engine's fuel injection system using standard screws

A failing or malfunctioning Throttle Position Sensor can produce a range of drivability issues. Below are the most common symptoms to watch for:

The most reliable indicator of a TPS problem is the check engine light accompanied by specific diagnostic trouble codes. Common DTCs associated with TPS failure include:

• P0120 – Throttle/Pedal Position Sensor/Switch "A" Circuit Malfunction
• P0121 – Throttle/Pedal Position Sensor/Switch "A" Circuit Range/Performance
• P0122 – Throttle/Pedal Position Sensor/Switch "A" Circuit Low Input
• P0123 – Throttle/Pedal Position Sensor/Switch "A" Circuit High Input

The most common symptom of a faulty TPS is hesitation when pressing the accelerator. The vehicle may jerk or stumble because the malfunctioning sensor fails to send proper throttle position data, causing an imbalance in the air-fuel mixture needed for smooth acceleration.

A faulty TPS can cause the engine idle speed to fluctuate unpredictably. When the sensor sends inconsistent signals to the ECU, the engine control module mismanages idle speed, leading to rough idling or "hunting" RPMs.

Since the ECU relies on throttle position data to determine the correct air-fuel ratio, a defective sensor may cause the engine to run either too rich or too lean, significantly reducing fuel efficiency.

The engine may stall unexpectedly—particularly when stopping or at idle—as the ECU receives incorrect throttle position signals and fails to maintain proper air or fuel delivery.

The throttle may become unresponsive or delayed when the accelerator pedal is pressed. This occurs because the ECU is not receiving accurate position data to adjust fuel delivery and ignition timing accordingly.

The vehicle may experience surging or "bucking" while maintaining a steady speed, as the ECU receives fluctuating throttle position signals.

A malfunctioning TPS can cause harsh, delayed, or erratic shifting in automatic transmissions. The ECU uses TPS data as one of the inputs for shift timing; incorrect data can lead to aggressive or late shifts, putting unnecessary stress on the transmission.

• Wear and tear – Internal potentiometer tracks wear over time due to repeated throttle movements
• Carbon buildup – Excessive carbon deposits on the throttle body can cause the sensor to stick or provide inaccurate readings
• Physical damage – Impact or mechanical stress can damage the sensor housing or internal components
• Moisture ingress – Liquid intrusion can cause corrosion and electrical shorts

When sourcing or purchasing the Throttle Position Sensor 2112-1148200, consider the following factors to ensure optimal performance and compatibility:

Always confirm that the part number on your existing sensor matches 2112-1148200. Alternate formats include 2112-1148200-03, 2112-1148-200-03, and 21121148200. Cross-check the OE reference number against the number found on your current unit before purchasing.

Ensure the sensor is compatible with your specific vehicle make, model, year, engine size, and transmission type. This sensor is primarily designed for Lada (VAZ) vehicles including Samara (21099), Niva, VAZ-2110, and VAZ-2114. Different vehicles may have varying specifications, and selecting the wrong sensor can lead to poor engine response or persistent check engine light issues.

Verify that you are purchasing the correct type of sensor. The 2112-1148200 is a mechanical potentiometer-type sensor. Some manufacturers offer contactless (non-contact) alternatives such as 3302.3855 and SV360 that are issued as replacements for this mechanical TPS. Ensure the replacement type is compatible with your vehicle's ECU and engine management system.

Look for sensors constructed with durable automotive-grade materials. High-quality sensors feature mechanical designs with rolling element bearings at both ends to reduce rotational friction and prevent sticking issues caused by carbon buildup on the throttle body. This design feature significantly reduces after-sales costs and improves product competitiveness.

Confirm that the mounting configuration matches your vehicle's throttle body. This sensor is designed for standard screw mounting and should be a direct fit for the original application.

Prioritize products that meet or exceed OEM standards and automotive quality management system certifications. Suppliers adhering to rigorous quality controls demonstrate commitment to product reliability and consistency.

When sourcing from suppliers, evaluate their technical capabilities, quality assurance processes, and production capacity. Look for evidence of:

• Strict quality control standards meeting OEM specifications
• Multiple inspections and testing before shipment
• Full manufacturer traceability
• Warranty coverage (some suppliers offer 12-month warranties)

During installation, ensure that:

• The sensor is properly aligned with the throttle shaft
• Mounting screws are tightened to the correct torque specification
• The connector is securely fastened
• Sensor wires are not routed over sharp edges
• Proper clearance is maintained from ignition HT leads, coil leads, and other sources of electrical interference

After installation, it is recommended to verify the sensor operation using a diagnostic scan tool. Check that the throttle position readings are smooth and consistent throughout the full range of throttle movement and that the check engine light is no longer illuminated.

Consider products that come with warranty coverage and technical support. A warranty can provide assurance of product quality and reliability. Many suppliers offer a 12-month warranty on TPS products.

• The sensor is a mechanical potentiometer-type device that provides continuous variable resistance output proportional to throttle position
• The sensor converts throttle position into a voltage signal input to the ECU
• The high-reliability design utilizes rolling element bearings at both ends to reduce friction and prevent carbon-related sticking issues
• The sensor is mounted on the throttle body of the engine's fuel injection system where the setting of TPS is accomplished with the help of standard screws
• Proper calibration is essential for accurate throttle response; voltage verification using a scan tool is recommended after installation
• This sensor is an Original Equipment (OE) number for Lada (VAZ) vehicles, meaning it matches the number of the complete component or sub-assembly that was originally fitted to the vehicle
• Replacing worn components on schedule preserves your vehicle's safety, reliability, and resale value
• For vehicles with electronic fuel injection systems, the TPS is a critical component for proper engine management