I wonder what it does.

[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.

[gropar]

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.

[gropar]

here it is (french, though)

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

[shakakan]

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

[shakakan]

anyone?

[gropar]

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.

[jtanguay]

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

[shakakan]

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

[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........     it takes the place of the pull cable in the dash

[dieseltech]

Hi the thing on the inj pump w the single wire hook up I've been told is a cold start advance control device........     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

[Mikeyworks]

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

That would help a bunch.

Mikey

[Mark(The Miser)UK]

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 :?:

[dieseltech]

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