What is Diesel Throttle / Anti-Shudder Valve (TVA)?
Diesel Throttle / Anti-Shudder Valve (TVA) is a core airpath concept in modern engine management: Intake shutoff butterfly used for smooth engine shutdown and EGR pressure drop; TVA-off prevents limp-home on actuator gear failure. Within Softechpro Solutions v2.0.6 (native Windows 10/11, macOS & B2B REST API), supported airpath structures are identified automatically across 4,973+ 12V Car/Van ECUs and 446+ 24V Heavy-Duty Truck & Tractor controllers with integrated block checksum calculation.
By Softechpro Calibration Engineering Team · Suite v2.0.6 · Last verified
Technical Specifications & Workshop Reference
| Engineering Attribute | Specification in Softechpro Solutions v2.0.6 |
|---|---|
| Subsystem Category | Airpath |
| Diagnostic / Protocol Refs | P0638, P2100, P2101 |
| Representative Controllers | EDC16U34, EDC17C49 |
| Required Input File | 100% Virgin Original Stock Readout (.bin / .ori full backup) |
| Supported Platforms | Windows 10/11, macOS (1 PC / HWID) & B2B HTTPS REST API |
Related ECU Engineering Terms
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Pops & Bangs (Overrun Ignition Crackle) →
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Bosch MDG1 (MD1 Diesel / MG1 Petrol) Platform
Euro 6d/6e Infineon Aurix TC275/TC298/TC399 multi-core ECU generation powering post-2018 VAG, BMW, Mercedes, PSA, Ford and 24V MAN/Iveco engines.
Engineering & Licensing Questions
What is Diesel Throttle / Anti-Shudder Valve (TVA) in ECU remapping and diagnostics?
Diesel Throttle / Anti-Shudder Valve (TVA) refers to intake shutoff butterfly used for smooth engine shutdown and EGR pressure drop; TVA-off prevents limp-home on actuator gear failure. Softechpro Solutions v2.0.6 automates binary detection and checksum verification on 100% virgin original stock files.
Which fault codes or identifiers relate to Diesel Throttle / Anti-Shudder Valve (TVA)?
Common diagnostic references associated with Diesel Throttle / Anti-Shudder Valve (TVA) include P0638, P2100, P2101. Upload your virgin ECU readout free at https://www.softechpro-solutions.com/ to verify exact software coverage.