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Alternative intake path?

 
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Corradoman
Blaumann
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Post07-05-2005, 11:05    Subject: Alternative intake path? Quote

Has anyone actually thought about how the intake path for the TDI engine could be improved to "relieve" the mass airflow sensor (MAF sensor)?
For example, in the Golf IV, it extends directly towards the front and sucks in air next to the headlight.
What could one do, for example, to counteract the moisture that inevitably enters the "airways" during rainy weather?

Don't worry, the "search" did turn up 2 direct topics related to this, but they no longer exist...
94er VW Corrado 16V für die sonnigen Tage im Jahr. Mein Alltags-Fahrzeug:
Golf IV Variant TDI,Bj 2000 mit ALH-Motor und bescheidener Leistung von 90PS -> verkauft
Touran "Freestyle" Modell 2010, BSE-Motor und niedlichen 102PS -> verkauft
Jetzt 2013er Nissan Qashqai 110 Diesel-Pferde
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Hati
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Post07-05-2005, 12:19    Subject: Alternative intake path? Quote

VW has already responded and designed a modified 'internal structure' for the air filter housing that is intended to prevent premature failure of the mass airflow sensors (MAF sensors). I don't have the ET number readily available at the moment.
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powermac
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Post07-05-2005, 14:13    Subject: Alternative intake path? Quote

VW has already reacted and designed a modified 'internal structure' for the air filter housing that is intended to prevent premature failure of the mass airflow sensors. I currently don't have access to the ET number.


This might be beneficial for extending the lifespan of the LMM.
However, it is counterproductive for good airflow within the air filter housing.
The air is redirected twice by 90 degrees within a few centimeters.
to eject the water contained within, in the form of droplets.
I threw this grill away after just a couple of hours.
The engine's responsiveness has noticeably worsened.

I now have the Pierburg mass airflow sensor installed. Let's see how long it lasts.
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Corradoman
Blaumann
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Posts: 44
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Post07-05-2005, 14:20    Subject: Alternative intake path? Quote

powermac wrote:


I now have the Pierburg mass airflow sensor installed. Let's see what the lifespan is like.

That's exactly what I'm concerned about, because I don't want him to even drive a few kilometers.
94er VW Corrado 16V für die sonnigen Tage im Jahr. Mein Alltags-Fahrzeug:
Golf IV Variant TDI,Bj 2000 mit ALH-Motor und bescheidener Leistung von 90PS -> verkauft
Touran "Freestyle" Modell 2010, BSE-Motor und niedlichen 102PS -> verkauft
Jetzt 2013er Nissan Qashqai 110 Diesel-Pferde
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Julian
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Post07-05-2005, 14:54    Subject: Re: Alternative intake path? Quote

Has anyone actually thought about how the TDI intake path could be improved to 'relieve' the mass airflow sensor (MAF)?


Since you're driving a 200 ALH model, you probably no longer have a fine mesh filter in the intake system. This kept the large debris out of my 1998 ALH engine, but it also needed to be cleaned regularly because otherwise, unfiltered air from the engine bay would be sucked in through a bypass valve.

My ALH-LMM lived a good life until the end... if necessary, you can install a diode... or you can get an intake manifold from the 1998 model. icon_cool.gif
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MONCHI
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Post11-05-2005, 13:10    Subject: Alternative intake path? Quote

However, it is counterproductive for good airflow in the air filter housing.
The air is redirected twice by 90 degrees within a few centimeters.
to eject the water contained within, in the form of droplets
...I need to ask something. I removed the air filter housing and snorkel from my Leon 96kW TDI (same model as the G4) and replaced it with a Twister kit.

...but rather to make the turbo's job a little easier (with an effective output of 128 kW).

'...I left the opening behind the headlight cover, where the snorkel would normally be attached, as it was. I secured the 80mm hose to the opening with zip ties so that everything is sealed.'
.....with the filter kit, the car definitely produces less smoke than with the original air filter housing.......so, it should have made a slight improvement in terms of 'reducing the strain on the vacuum system'.
...I actually intended to increase the opening of the housing to 78mm to further increase the airflow.

.........but I suppose there's a risk that water could splash into the intake manifold, right?
'Right now, I'm not noticing any changes whether I'm driving in heavy rain, just came out of the car wash, or it's dry outside... so it seems to be okay for now!'
...I would be grateful for any suggestions!
Regards,
Monchi.
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