1990 vw jetta diesel glow plug issue

[C_Luft]

I recently helped a buddy purchase a 1990 vw jetta 1.6 diesel na with a bad transmission. Its up and running now with a used 5 speed from his 85 golf, but were having issues with the glow plug system namely the relay/ solenoid. The previous owner put in after market system, but instead of using a garden tractor solenoid could i use a spare 7.3 idi glowplug controller or the solenoid of of the controller.

http://vincewaldon.com/index.php?option=com_content&task=view&id=30&Itemid=28

 

[79jasper]

The controller will do you no good. But the relay itself might work.
Why not return it to stock?

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[C_Luft]

We just tried using the solenoid off the controller, didnt work. He is going to install his glow plug system from the 85 golf in the mean time. Thanks

 

[79jasper]

That's because the Solenoid off the 7.3 is ground activated.
For the vw, it's probably 12v+ activated.

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