The throttle valve, also known as TVA (Throttle Valve Assembly), is a component that controls air intake in internal combustion engines. This valve opens and closes when the driver presses the accelerator pedal and regulates the amount of air entering the engine. The throttle valve directly affects the performance, acceleration and fuel consumption of the engine.
Solution
TVA Removal
NuoVolta provides a ready TVA Removal solution for 247 ECUs, including Bosch MD1CS003, Denso [Diesel] and Delphi DCM6.2V. Select your ECU below to see the details.
TVA (Throttle Valve Assembly)
FUNCTION OF THROTTLE VALVE
The throttle valve basically controls the amount of air entering the engine. This regulates airflow to optimize the engine's fuel-air mixture. Here are the main functions of the throttle valve:
- Controlling Airflow: The throttle valve opens and closes depending on the accelerator pedal. The harder the pedal is pressed, the more the valve opens and more air enters the engine. This allows the engine to accelerate.
- Managing Engine Performance: The throttle valve is a critical component for adjusting the operating speed and torque of the engine. It optimizes engine performance by regulating air flow.
- Adjusting Fuel-Air Mixture: The engine control unit (ECU) monitors the throttle valve position and airflow. Based on this information, it adjusts the amount of fuel sent to the injectors and ensures the ideal fuel-air mixture.
- Checking Idle Speed: The throttle valve ensures proper airflow when the engine is idling. In modern vehicles, the idle control valve or idle air control valve (IACV - Idle Air Control Valve) supports this function.
COMPONENTS OF TVA (Throttle Valve Assembly)
The throttle valve consists of several main components:
- Butterfly Plate: A rotating disk that regulates air flow. It opens and closes depending on the gas pedal.
- Housing: The structure that houses the butterfly plate and other components. It is usually made of aluminum.
- Sensors:
- Throttle Position Sensor (TPS): Monitors the position of the throttle valve and transmits this information to the ECU.
- Air Intake Temperature Sensor: In some systems, it measures the air temperature and uses this information to optimize the air-fuel mixture.
- Actuator (for Electronically Controlled Systems): In electronic throttle valve systems, the electric motor controls the movement of the butterfly plate.
PROBLEMS OF TVA (Throttle Valve Assembly)
- Limp mode problem
- Malfunction light coming on (Check Engine Light)
- Erratic Idle
- Poor Acceleration
- Increase in Fuel Consumption
- Engine Hard to Start or Not Starting
- Increase in Exhaust Emissions
NUOVOLTA SOLUTION OF TVA (Throttle Valve Assembly)
- Offical diagnostic tool must reset position the relevant module.
- DTC codes should be read and removed with a diagnostic tool.
- Apply the solution of the module related to NUOVOLTA.
- Write the mod file to the ECU.
- Check the dashboard and DTC logs. Take it for a test drive.
- If all the checks are OK, it means the problem is solved.
ECUs supported for TVA Removal
Grouped by ECU manufacturer, most requested first.
Bosch
- Bosch MD1CS003
- Bosch EDC17C50-C56
- Bosch EDC17C49
- Bosch MEDC17.9
- Bosch EDC17C10
- Bosch EDC17CV41
- Bosch EDC17C74
- Bosch EDC17C46
- Bosch EDC17C60
- Bosch EDC17C64
- Bosch EDC17C84
- Bosch EDC17C42
- Bosch EDC17C69
- Bosch MD1CS006
- Bosch EDC16C39
- Bosch EDC16C34
- Bosch EDC17CP45-CP49
- Bosch EDC17CP14
- Bosch EDC17CP57
- Bosch EDC17C41
- Bosch MD1CP001
- Bosch EDC17CP46
- Bosch EDC17CV42
- Bosch EDC16C31-C35
- Bosch EDC17C70
- Bosch MD1CS001
- Bosch EDC17CP20
- Bosch EDC17C57
- Bosch EDC16C31-EDC16C32
- Bosch EDC17CP02
- Bosch EDC16CP34
- Bosch MD1CS069
- Bosch EDC17CP55
- Bosch EDC16CP31
- Bosch EDC17C66
- Bosch EDC17CP52
- Bosch EDC17C59
- Bosch EDC16U34
- Bosch EDC16U31
- Bosch MD1CS005
- Bosch EDC17CP10
- Bosch EDC17C54
- Bosch MD1CS004
- Bosch MD1CP004
- Bosch EDC17C08
- Bosch MD1CP002
- Bosch EDC17C06
- Bosch EDC16U1
- Bosch EDC17CP54
- Bosch MG1CS003
- Bosch EDC17CP44
- Bosch EDC17CP07-EDC17CP37
- Bosch EDC17C79
- Bosch EDC17CP42
- Bosch EDC16CP33
- Bosch EDC17CP11
- Bosch EDC15P
- Bosch EDC16CP35
- Bosch MD1CE100
- Bosch EDC17C53
- Bosch EDC17C83
- Bosch MED17.7.2
- Bosch EDC17CP09
- Bosch MED17.5.25
- Bosch EDC16C31
- Bosch EDC17C58
- Bosch EDC17C19
- Bosch MED17.5.5
- Bosch MEVD17.2.9
- Bosch MED17.5.21
- Bosch MG1CS201
- Bosch EDC17C11
- Bosch EDC17CP04
- Bosch EDC7C4-EDC16C31
- Bosch MEVD17.2.5
- Bosch MED9.1.X
- Bosch EDC16C36
- Bosch EDC16C9
- Bosch ME7.X
- Bosch EDC16CP39
- Bosch EDC16C3
- Bosch MED17.5
- Bosch EDC17CP48
- Bosch EDC17C18
- Bosch MEVD17.2.3
- Bosch EDC16CP36
- Bosch EDC17C73
- Bosch MEVD17.2.G
- Bosch MD1CP014
- Bosch MD1CS012
- Bosch MED17.1.X
- Bosch EDC17CP74
- Bosch EDC17C81
- Bosch EDC17CP22
- Bosch MED17.X-MEVD17.X
- Bosch EDC15C4
- Bosch EDC17CP24
- Bosch EDC17CP01
- Bosch EDC17CP16
- Bosch MED17.7.3
- Bosch EDC16C31-EDC16C10
- Bosch ME9.7
- Bosch EDC16C7-EDC16C31
- Bosch MD1CS014
- Bosch EDC17CP18
- Bosch EDC17CP50
- Bosch EDC17U01
- Bosch EDC17CP06
- Bosch MED17.1.27
- Bosch ME17.3.0
- Bosch EDC17CP65
- Bosch EDC17CP15
- Bosch EDC17CP05
- Bosch MED9.5.10
- Bosch EDC17CP27
- Bosch EDC17C47
- Bosch EDC16CP42
- Bosch EDC16C7
- Bosch EDC17C43
- Bosch EDC17CP47
- Bosch MEVD17.2.4
- Bosch MED17.4.X
- Bosch EDC16C0
- Bosch MD1CP032
- Bosch ME9.2
- Bosch MED17.5.20
- Bosch EDC17CP68
- Bosch MEVD17.2.6
- Bosch MED17.5.2
- Bosch MED17.5.1
- Bosch ME7.9.10
- Bosch EDC17C76
- Bosch ME7.6.X
- Bosch MED17.9.X
- Bosch MG1CP002
- Bosch MEVD17.2.H
- Bosch EDC17CP19
- Bosch EDC17CP58
- Bosch MED17.1.62
- Bosch ME17.9.X
- Bosch MEV17.4.6
- Bosch MEVD17.2-MED17.1.1
- Bosch MEV17.4.X
- Bosch EDC16C8
- Bosch ME7.4.X
- Bosch MED17.8.10
- BOSCH MED17.8.3x-MED17.5.4
- Bosch MED17.1.21
- Bosch MG1CS042
- Bosch ME17.9.20
- Bosch EDC17U05
- Bosch EDC16C41
- Bosch MEVD17.2.8
- Bosch MED17.3.X
- Bosch MEVD17.4.2
- Bosch ME17.5.26
- Bosch MED17.1.9
- Bosch MEVD17.4.4
- Bosch MG1CS024
- Bosch MED17.9.7
- Bosch MG1CS026
- Bosch ME17.5.6
- Bosch MG1CS080
- Bosch MG1CS032
- Bosch MD1CS015
- Bosch ME7.3.X
- Bosch MG1CS088
- Bosch ME17.5.24
- Bosch EDC17CP62
- Bosch ME17.8.3
- Bosch ME17.9.52
- Bosch ME17.9.61
- Bosch MED7.6.X
Denso
Delphi
Continental
- Continental SID208
- Siemens PCR2.1
- Continental SID310
- Continental SID211
- Siemens SID807
- Siemens SID305-SID306
- Continental SID321
- Siemens SID206
- Continental SID209
- Continental SID307
- Siemens PPD1.X
- Continental SID309
- Siemens SID201-SID204
- Siemens SID301-SID304
- Siemens SID804
- Siemens SIMOS19
- Siemens SIMOS10
- Siemens SID803
- Siemens SID201
- Continental EMS3155
- Siemens SIMOS8
- Continental EMS3141
- Siemens SIMOS12
- Continental EMS3150
- Siemens SIMOS16
- Continental EMS3125
- Siemens SIMOS11
- Siemens SIMOS6
- Siemens SIMOS3
- Siemens MSD87
- Continental EMS3110
- Siemens SIM2K-240
Transtron
DELCO
Continental
Hitachi
Temic
Diagnose and repair real faults first. Removing or disabling emission systems is only permitted where allowed by law, for example for off-road or motorsport use.
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