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Author Topic: What's this cap on the inlet manifold?  (Read 2014 times)

July 15, 2009, 04:27:41 pm

92EcoDiesel Jetta

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What's this cap on the inlet manifold?
« on: July 15, 2009, 04:27:41 pm »
What's the black rubber cap for? Not visible in pic (upper left corner), on the vent hose there's a sensor with 2 wires. What is that?

« Last Edit: July 15, 2009, 05:22:14 pm by 92EcoDiesel Jetta »



Reply #1July 15, 2009, 05:45:04 pm

rallydiesel

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Re: What's this cap on the inlet manifold?
« Reply #1 on: July 15, 2009, 05:45:04 pm »
Don't mean to be a dick but you could find the answers to your questions by searching. Since I am not a dick (I hope), the manifold nipple is where a hose goes that connects to the turbo pump LDA to increase fuel with increasing boost. The electrical plug on the CCV hose is a small heater to keep the CCV hose from freezing up.
2006 Jetta TDI - gtb1749v, Malone 2, Frank's Titan 2 cam, VR6 clutch....
1991 Jetta TD - sold :(
2001 Golf TDI - Son's
1981 Rabbit - BEW tdi swap project

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Reply #2July 15, 2009, 06:51:24 pm

burn_your_money

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Re: What's this cap on the inlet manifold?
« Reply #2 on: July 15, 2009, 06:51:24 pm »
I think the cap you are talking about is the BOV AKA overboost protector.
Tyler

Reply #3July 15, 2009, 06:57:32 pm

hamradio

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Re: What's this cap on the inlet manifold?
« Reply #3 on: July 15, 2009, 06:57:32 pm »
The thing circled is the capped off nipple for the small vac line stuff to go on for an LDA pump.

Reply #4July 16, 2009, 07:12:35 am

nokivasara

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Re: What's this cap on the inlet manifold?
« Reply #4 on: July 16, 2009, 07:12:35 am »
That's a great place to connect a boost gauge to.
I had a Passat Eco and I borrowed the small plastic line going to the EGR and used it to my boost gauge.
Caddy 1.6N/A pushing 400 000km and going strong!

Reply #5July 16, 2009, 08:08:56 am

Jettage1

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Re: What's this cap on the inlet manifold?
« Reply #5 on: July 16, 2009, 08:08:56 am »
The TD LDA connection.  I did this conversion on mine.  Also put a tee in line for a boost gauge.  AFAIK there's no BOV on the ecodiesel.
Steve

92 Jetta EcoDiesel
     pumped by Giles...powered by Frybrid...functional by dumb luck

Reply #6July 16, 2009, 10:51:31 am

lovinthedeez

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Re: What's this cap on the inlet manifold?
« Reply #6 on: July 16, 2009, 10:51:31 am »
Don't mean to be a dick but you could find the answers to your questions by searching.

getting a bentley wouldn't hurt either.  seems like you're long overdue. ::)
location:  ashland, oregon US

 

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