The ignition switch controls the glow plugs, not the NSS switch....

Read this thread, about a member bypassing his, when he did the conversion...

http://www.peachparts.com/shopforum/diesel-discussion/333235-need-help-nss-going-auto-manual-trans.html

The issue is, are they coming on? or is just the glow plug light coming on?

I am not sure, if there is a ground issue...If this would cause the light to flicker...or not....The only other things that will cause this....Is the relay or ignition switch...

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