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Engine Specific Info and Questions => IDI Engine => Topic started by: shakakan on March 21, 2005, 03:52:27 pm

Title: I wonder what it does.
Post by: shakakan on March 21, 2005, 03:52:27 pm

Does anyone know what the small sillinoid looking thing between the injection pump and alternator does?  I am just wondering.  

To be more specific, it is mounted directly in front of the injection pump, and has one small line bolted to the pump to the right of where the fuel enters from the filter.  It has one wire conected to it.  I belive it is red (the wire)  I am just wondering what it does.

Title: I wonder what it does.
Post by: gropar on March 21, 2005, 04:48:40 pm

I figure you a 1.9 engine. If it's the case, solenoid you are refering to is anti-polution device wich ajust injection timing (or volume -- not shure) according to engine revolution.

IF it is what you are refering to, it can be bypassed (continuous 12V through stop solenoid) to increase performance and fuel economy).

See with VWQ's Smog pump adjustment which you should be able to find here on VWdiesel.net.

Title: I wonder what it does.
Post by: gropar on March 21, 2005, 04:50:57 pm

here it is (french, though)

http://vwdiesel.net/phpBB/viewtopic.php?t=589

Title: I wonder what it does.
Post by: shakakan on March 21, 2005, 06:15:55 pm

I have a 1.6 NA (91 Jetta) it has the atmospheric compensator on top, if that makes a differenence.

Title: I wonder what it does.
Post by: shakakan on March 22, 2005, 03:36:11 pm

anyone?

Title: I wonder what it does.
Post by: gropar on March 22, 2005, 04:28:52 pm

Sorry : if it is a 1.6, then you lost me -- I do not have a clue about what it could be.

Maybe a picture would help.

Title: I wonder what it does.
Post by: jtanguay on March 22, 2005, 05:56:49 pm

thats not the fuel cut off solenoid is it???

Title: I wonder what it does.
Post by: shakakan on March 22, 2005, 08:48:48 pm

nope, the cut off solenoid is on the right side top of the pump.

Title: thing on inj pump
Post by: moosiah on March 23, 2005, 09:19:22 pm

Hi the thing on the inj pump w the single wire hook up I've been told is a cold start advance control device........  :D  :( it takes the place of the pull cable in the dash

Title: Re: thing on inj pump
Post by: dieseltech on March 23, 2005, 09:44:25 pm

Quote from: "moosiah"

Hi the thing on the inj pump w the single wire hook up I've been told is a cold start advance control device........  :D  :( it takes the place of the pull cable in the dash

then why is there still a pull cable on the dash, my 89 has that solinoid and the cable non turbo 1.6

Title: I wonder what it does.
Post by: Mikeyworks on March 24, 2005, 05:38:02 am

can you snap a picture and e-mail it or post it?

That would help a bunch.

Mikey

Title: Re: I wonder what it does.
Post by: Mark(The Miser)UK on March 24, 2005, 08:50:19 am

Quote from: "shakakan"

Does anyone know what the small sillinoid looking thing between the injection pump and alternator does?  I am just wondering.  

To be more specific, it is mounted directly in front of the injection pump, and has one small line bolted to the pump to the right of where the fuel enters from the filter.  It has one wire conected to it.  I belive it is red (the wire)  I am just wondering what it does.

 :?: Purely a guess but it sounds like an automatic choke similar t oone my father has on his Citroen.  Or is it a fuel preheater too :?:

Title: I wonder what it does.
Post by: dieseltech on March 24, 2005, 03:54:58 pm

(http://img83.exs.cx/img83/3100/pump6nj.jpg) (http://www.imageshack.us)

looks to me like its a timing retard device. it only gets power when its cold. when the engine warms up the +12v goes away