My Vanagon's throttle feels sticky and my idle is rough. Will this GoWesty throttle valve housing really fix that, or is it just a cosmetic upgrade?

This GoWesty-designed billet aluminum throttle valve housing is a direct and significant upgrade over the original, worn-out units. The main issue with stock housings is wear on the throttle shaft bore, causing the throttle plate to bind or leak, leading to erratic idle and poor throttle response. Our housing features a completely new design with sealed ball bearings supporting the throttle shaft, eliminating this wear problem entirely. It also includes a new throttle plate, return spring, and a pre-adjusted throttle position sensor (TPS), addressing the root cause of many idle and performance issues. Many customers report a 'night and day' difference in how smoothly their engine idles and responds.

I'm nervous about installing this throttle valve housing myself. How complicated is the installation, and will I need special tools or adjustments afterwards?

We designed this throttle valve housing for a straightforward installation; it's a direct bolt-on replacement for most Vanagon waterboxer models with original Bosch EFI (Digifant/Digijet systems with a single micro switch underneath). Most customers find the installation manageable with basic tools, typically taking a couple of hours. The new throttle position sensor (TPS) and throttle plate are pre-adjusted out of the box, requiring no further adjustments. You'll need to reconnect vacuum lines and electrical connectors, and we highly recommend replacing the intake plenum seal (DuroGreen gasket) for a perfect seal. Refer to installation notes and your Bentley manual for specific vacuum line routing on Digijet systems.

My 1985 Vanagon is from California. Is this throttle valve housing street-legal and will it pass emissions testing?

Yes, this GoWesty Throttle Valve Housing has received an official Executive Order (#D-786-1) from the California Air Resources Board (CARB), making it 100% emissions-legal in all 50 states, including California. You can be confident it will pass your smog checks.

I have an older 1983 Vanagon with two micro switches on top of the throttle body. Will this throttle valve housing work for me, and what's involved?

For 1983-85 Vanagons with the Digijet system that originally had two micro switches on top of the throttle body housing, this GoWesty unit will work but requires adapting your EFI wiring harness with the Bosch Sealed 2 Pin Female Connector Kit (sold separately). The new housing effectively replaces those two switches with its integrated, pre-adjusted TPS. Installation instructions are provided, and while it involves a bit more wiring than single-switch models, it's a manageable upgrade for many DIYers seeking a reliable throttle valve solution.

Throttle Valve Housing (Digifant/Digijet) [Vanagon]

Name: Throttle Valve Housing (Digifant/Digijet) [Vanagon]
SKU: GVW-TB-DF-N
Price: 350.0 USD
Availability: InStock

Throttle Valve Housing (Digifant/Digijet) [Vanagon]

Product:	GVW-TB-DF-N
Works With:	1983-1991
Manufacturer:	GoWesty
Availability:	Only 4 Left in Stock!
Wrench Rating:	Requires some hand & power tools and minimal mechanical knowledge.

$350.00

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We are extremely proud of our 100% brand-new, high-quality, street-legal, GoWesty-designed billet aluminum Throttle Valve Housing (aka Throttle Body) for your Vanagon with waterboxer and the original Bosch EFI. Unlike other throttle bodies sold elsewhere, our GoWesty throttle body is 100% legal in all 50 states and comes complete with a brand new throttle position sensor (TPS), pre-adjusted and ready to roll! Nothing else to buy, nothing to adjust!

Features:
• New anodized billet aluminum throttle valve housing.
• New anodized aluminum throttle plate.
• Completely sealed throttle shaft design. No shims.
• Double-sealed, stainless ball bearings locate the throttle shaft rotationally. No bushings to wear out.
• O-ring between shaft and bearing. O-ring between the bearing and housing.
• New throttle return spring
• DuroGreen Throttle Body to Intake Plenum Seal
• All new hardware.
• Pre-adjusted throttle position switch (TPS).
• Emissions legal in all 50 States - See Emissions Information below!
• 100% USA-designed and manufactured.

These throttle body assemblies are completely new and have no core charge!

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.

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.

Installer beware: Changing out any one part of your EFI system that is faulty with a new or rebuilt part may cause worse running because other settings may have changed over time to compensate for the faulty part you are replacing. Following the baseline settings procedure in the Bentley manual is required after installation. Also please read our return policy related to electric and electronic items.

Caution: the Bosch-design electrical plug that this item accepts is the same as on many other components in the engine compartment, some that are close in proximity to each other. Be very careful NOT to mix them up! Always unplug/plug in one thing at a time whenever possible, label all plugs if more than one is to be removed, for example when replacing an engine long block, or even just the throttle body. Failure to take caution will lead to severe engine wiring damage.

5 stars: 26 (100%)
4 stars: 0 (0%)
3 stars: 0 (0%)
2 stars: 0 (0%)
1 star: 0 (0%)

Great replacement part. A thing of beauty. Installation (with cruise control) was fairly straight forward. Incredible driving response, smooth and a much better driving experience. Highly recommend!

Wow.

Old Greyg was running quite well but had some hesitation off the line and slight surging when in neutral. Nothing that kept me from driving it but since Santa got me this new throttle body...

My starter died and that generally requires removing the throttle body to install so my installation procrastination finally paid off! I changed out the starter and the throttle body in the driveway in about three hours. Everything was pretty straight forward. The end result was instantly noticeable with a rock steady idle at 900rpms when in neutral and in drive. The an does not hesitate at all off the line now and I assume my mpgs will also improve.

Don't hesitate (like your van at a green light)... replace this part and enjoy the ride.

A must

So easy to install, two screws, quick connection for switch, everything lines up. Be sure to order a new manifold seal!
Minor adjustment for the switch mount.
Original throttle body was shot, leaked
Worked well, need to go for a ride

Don't rebuild your OE throttle body, upgrade to this one Superior to the OE design in every way it's a no-brainer.

Wish i got the version wit the TPS and NOT WOT/Idle switch. Would have save a few bucks...but all in about the same price. Been great so far. .VERY high quality

Works good!

What I needed, and arrived fast. My kind of purchases

Easy install on my 1.9L early vanagon with the two TPS switches. I had replaced the ignition harness and already had the two-wire connector to plug in to. Vacuum mod is simple and documented well. Noticable improvement right away. Pick up is downright spirty mow. Expecting good news on mpg. Minor adjustment on the air screw needed, but pretty much drop-in and go.

Throttle Valve Housing (Digifant/Digijet) [Vanagon]

The old throttle valve housing is old and the throttle was little sticky. This is a great upgrade for my Tin Top and needs to be done. I highly recommend this product as it is superior to the original equipment. 5 Stars!!! R/Jeff

Excellent Throttle Valve Housing

Extremely easy to install. Car started up instantly, no problems.

Would appreciate a little more details on how to adjusted throttle adjustment screw, but other than that, all good!

Lastly: the throttle body actually comes with the gasket needed, so you don't need to make the mistake I did and buy a 2nd one! :)

Note that the instructions show a hole to put the tension spring on, but this must be an old model, the tension spring now goes in a slightly different spot (see photos below)

excellent product

I opted for this upgrade to try and help idling and performance issues with the 1984 Digijet and worn throttle, instead of $$$ for GW-EFI. While it's not as good as GW-EFI, it helped idle stability and throttle response a ton, and replaced the janky original dual TPS. Plus it's bombproof. Two thumbs up!

Excellent throttle valve housing. Big improvement from the old worn out OEM throttle.

Sick throttle housing

Engine is idling smoothly after installing it. Pedal feels softer, in a good way. Easy to install.

Excellent quality

Excellent quality and thoughtful design — highly recommended for fellow van enthusiasts considering a purchase.

Saved my Van!!1

Very economical solution for aging Throttle Bodies.
Thank goodness GoWesty has this. Easy install.

Throttle body

This is a must have for your Vanagon! It’s definitely worth every penny. Smooth acceleration and great throttle response. Makes such a big difference, felt like one of my Honda’s from the mid 90’s lol. You will not be disappointed.

Throttle Body in a 2.2L Digijet

Silky smooth acceleration and great idle. Simple install in a Digijet system with two TPS switches. Excellent design and build quality. Great job GoWesty!!!!

Huge improvement 1.9L

So I knew my throttle body was worn and not the best but my idle was not too high so I put this off for a while. It did chug a lot when idling, when driving slow (through a campground) the on and off idle switch was so finiky the van would start to hop. I replaced the throttle body and altered the 1.9L wiring harness, followed instructions to add a T to the manifold vacuum line for the vacuum advance. I also replaced the throttle cable (highly recommended). THIS IS THE BEST aftermarket part I have put on my vanagon. I have ratio rockers, high flow oil pump and mansi injectors. with all the great stuff done it just purrs and runs very happily down the highway. Well done GW.

Perfect!

well worth it! immediately noticed a difference in performance

Better than the original part

Easy to install, and better performance.

Absolutely Amazing Results!

This changed everything! My old girl was shaking, idling too high, too low, and accelerating unpredictably. I was very worried. The moment I put the new throttle in, it was like a breath of fresh air. Worth every penny. I also changed out the Accelerator cable and pin+screw which helped eliminate the possibility of sticky pedal that might have been contributing idle problems, but you'll have to determine for yourself.

I wish my Westy was built like this throttle body!

The TPS finally gave out in an original GW throttle body. This repair is straight forward and relatively painless. Make sure to get a new gasket. A flattened gasket will leak air. Nice to have a consistent startup. Reliability took another step up.

Throttle Body

I bought your billet throttle body. It arrived quickly and it took 20 minutes to install including the cruise control linkage. It started up in a 1/2 second and runs so much better. Idle is perfect, the exhaust burns way cleaner and cold idle is perfect. The machine work, anodizing, and Hall switch are awesome. Even the acceleration is snappier. Not expecting that. Couldn't be happier. Almost ready for wife and I to go on our 600 mile annual Lolo, Clearwater, Locksa river trip in Idaho on our anniversary in May. Looking forward to it. Thanks for putting together such a nice Westfalia kit.

Throttle body

This product was a direct swap for my 90 vanagon 2.1 liter engine. This vehicle now purrs like a kitten. Highly recommend

Excellent upgrade from the oem throttle!

My vanagan had some trouble idling, i bought this upgrade and boom she runs finally. Super nice throttle body over the oem TB highly recommend.

Full Throttle!

This is definitely an upgrade over my old, worn, original throttle body! Well engineered and high quality. The TPS on the old throttle body would not stay in adjustment - too much slop in the butterfly valve shaft. The new GW unit, crafted with tight tolerances and better parts, keeps the shaft in place with no air leaks and the TPS that comes with it works as it should. Worth every penny!

Throttle Valve Housing (Digifant/Digijet) [Vanagon]

Throttle Valve Housing (Digifant/Digijet) [Vanagon] Wrench Rating

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Throttle Valve Housing (Digifant/Digijet) [Vanagon]

Throttle Valve Housing (Digifant/Digijet) [Vanagon] Wrench Rating

All Wrench Ratings

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