I thought this bit was the ASV but GSF says Throttle body

http://www.gsfcarparts.com/185vg0260

Where is the ASV is it in with the EGR?

You comparing 2 different parts, it is the ASV and that is a throttle body

I dont understand, where is the ASV?

In the picture, the part dirctly connected to the intake hose is the 'throttle body', as per the link in your post.. It stops the engine juddering to a stop when ihe engine is swiched off. The part between this and the inlet manifold, with the round bit on top, is the EGR valve. They are seperate parts on the 'BLT' engine.

SN

I dont understand, where is the ASV?

the ASV is on the diesel engine (BLT in this case), and the throttle body will be from a petrol engine of some sort. Are you getting confused by the fact both have butterfly valve to control air flow?

On the BLT the ASV and throttle body are the same thing. The throttle body isn't connected to pedal operation like in a petrol but on the Euro 4 engines due to tighter emission controls required electronic operation rather than the vacuum system of Euro3 cars.

Just looking/thinking out loud here, but due to the way the EGR and the ASV is set out on the BLT engine, could I replace the EGR with 2 alloy flanges the correct shape to suit the inlet manifold side and the ASV side, and weld in an alloy pipe to refit back into place as a sort of EGR delete (of course blank off the exhaust pipe also?

Also the throttle body and indeed it's earlier version aren't just an ASV. They also close partly to create a depression behind the throttle plate which draws EGR gases into the intake as a diesel doesn't generate any manifold vacuum.

Since when does a diesel have a throttle body?

On the BLT the ASV and throttle body are the same thing. The throttle body isn't connected to pedal operation like in a petrol but on the Euro 4 engines due to tighter emission controls required electronic operation rather than the vacuum system of Euro3 cars.

The 1.9 TDI BUK engine also Euro 4 is vacuum controlled! The emissions related changes are significantly apparent in the software

Well this is my Throttle body, AVS, EGR, Turbo, Piston, Air Filter or what ever it is.

F'ing retarded design!!! EGR is now closed off and no dirty **** going in. The EGR was 10x worse and so was the inlet

Since when does a diesel have a throttle body?

What's a throttle body? Technically by definition it's a restriction (or throttle) in an air path in this instance, so it's quite an accurate description.

The 1.9 TDI BUK engine also Euro 4 is vacuum controlled! The emissions related changes are significantly apparent in the software

Good job as well, IIRC the BUK doesn't struggle with the stutter and poor idle of the BLT either.

Well this is my Throttle body, AVS, EGR, Turbo, Piston, Air Filter or what ever it is.

F'ing retarded design!!! EGR is now closed off and no dirty **** going in. The EGR was 10x worse and so was the inlet

No you just need do the elephant hose mod to stop the crank case breather feeding oily air into the intake. That's waht mixes with the sooty air from the EGR and causes the build up on gunge.

Done it ages ago mate, but that dont go anywhere near the EGR side of things?

Done it ages ago mate, but that dont go anywhere near the EGR side of things?

It goes into the intake. The reason there is so much oil in there is from the breather circuit. EGR itself if just exhaust gas and a bit of soot. On its own it wouldn't do that to the intake system.

Done it ages ago mate, but that dont go anywhere near the EGR side of things?

It goes into the air intake (after the air filter) through the turbo and intercooler and EGR/ASV into the inlet manifold.

Beaten to it!

Edited 9 September, 201213 yr by trundlenut

Done, just clean air from now on. Is there any additive I can get to clean the inlet manifold as that was caked also. The car run so much better now its all de gunked. just wish i had a clean manifold

The only option is to take it off, otherwise you risk the gunge ending up in the valves and cylinders and possibly make the engine runaway uncontrollably.

I seem to remember someone using diesel/kerosene to clean the EGR/manifold then reassembing and starting the car before it had all evaporated and bad things did ensue.

What's a throttle body? Technically by definition it's a restriction (or throttle) in an air path in this instance, so it's quite an accurate description.

I got to disagree with the terminology being used here I'm afraid. On the BLT engine in this case it is an Anti Shudder Valve. Removing it from the system affects throttle how? A throttle body directly affects throttle, and therefore it's name is derived from its function.

Let's just agree to disagree

It's primary function isn't a shudder valve though.

So where is the "TB" on the other RS engine, every where else where i have looked is calling it the ASV

There isn't one on the other vRS engine, it was added to the BLT as part of the euro 4 package along with the EGR cooler etc.

Both ASZ and BLT have an ASV aswell as a lot of the other models, the BLT has the EGR and ASV as 2 separate components, the ASZ has them combined into one component. On the BLT the ASV is electronically controlled as opposed to the old vacuum control system.As I said above, the BUK PD160 also Eu 4 doesn't have the electronically controlled ASV but is vaccum operated, still Euro 4 compliant and I agree the EGR cooler was added. A lot of the newer engines have adopted the electronically controlled ASV (Intake Manifold Flap) which I do agree plays it's role in the the EGR process, but also in shutting down diesel engines.

This is all what I've been lead to believe over the years, If I'm wrong thats fine, I shall gracefully take that on the chin. Maybe darkside developments have it wrong too

http://www.darksided...-race-pipe.html

Edited 10 September, 201213 yr by bondi

http://www.darksidedevelopments.co.uk/products/vw-audi-1-9-2-0-anti-shudder-valve-asv-038-128-063-m.html

Anti Shudder Valve (ASV), also know as the Inlet Manifold Flap (IMF)... or incorrectly called the Throttle Body