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We are extremely proud of our high-quality, brand-new, GoWesty-designed Throttle Valve Housing for your 2.1L and late 1.9L Vanagon fitted with original VW fuel injection.
Features:
• New anodized billet aluminum throttle valve housing
• New anodized aluminum throttle plate.
• Sealed, stainless ball bearings locate the throttle shaft rotationally. No bushings to wear out.
• Precise shims locate the throttle shaft axially. No more throttle plate/housing contact and resulting wear of both.
• All new hardware
• Pre-adjusted throttle position switch (TPS)
These throttle body assemblies are completely new and have no core charge!
Note: This throttle valve housing is a direct replacement for all 2100cc, and 1900cc throttle valves that have 1 micro switch located underneath the housing.* This throttle valve is NOT a direct replacement for 1900cc throttle valves with the TWO micro switches on TOP of the housing, modification to the EFI wiring harness is required for that application. The Bosch Sealed 2 Pin Female Connector Kit is necessary to make this modification.
Note for Digijet (1983-85 1900cc USA Vanagons): The vacuum port on our throttle valve housing is used on all Vanagons for the fuel tank vapor control system, and for the vacuum advance side of the Digijet distributor diaphragm. Connect the vacuum advance side of the distributor diaphragm to the vacuum port on the new housing. The vacuum retard port is connected to the intake manifold vacuum. Simply "T" off of the vacuum line that runs to the fuel pressure regulator and plumb it to the vacuum retard port on the distributor diaphragm.
*This throttle valve housing is NOT compatible with the GoWesty Engine Management System (GW-EFI). It is for Digifant/Digijet fuel injection only. If you are ready to update your vehicle to a modern and reliable fuel injection system, please click the link above.
The stock throttle valve housing is a poorly-built design, and it is the cause of many problems after 20+ years of operation. One of the main issues with the stock design is that the shaft is not shimmed properly, which causes the throttle shaft and plate to move downward (gravity). This downward force causes the throttle plate to come into contact with the housing, and the resulting wear creates some serious issues: air flow around the plate leads to high and unstable engine idle speeds; the throttle can stick open or closed, which creates a very unpleasant driving experience, and can be dangerous. This contact also causes the shaft to become uncentered, which increases shaft-to-throttle body wear. The throttle position switch becomes nearly impossible to adjust properly, meaning the Digifant system has no good indication of whether the system is actually at idle (for idle control) or actually at full throttle—which can wreak havoc with the Digifant system.
This GoWesty designed throttle valve housing eliminates all of these problems. The throttle housing is bored smooth and fitted with a brand-new anodized aluminum throttle plate. The housing is machined for common size sealed ball bearings, which hold the shaft firmly in place. Every throttle shaft is shimmed properly to locate the throttle plate and prevent contact with the housing over time. Each throttle position switch and throttle plate stop has been pre-adjusted in-house during assembly.
EMISSIONS INFORMATION: GoWesty throttle bodies have received an official California Air Resources Board (CARB) Executive Order #D-786-1, and is smog-legal in all 50 states
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