You get the best evaulation when testing the later pencil-type glow plugs by measuring their current draw.

Here's all the meter you need to do that:

http://mcm.newark.com/NewarkWebCommerce/mcm/en_US/support/catalog/productDetail.jsp?id=72-5095

It has a 20-amp range.

Your good glow plugs will exceed 20-amps slightly for a fraction of a second and then start settling down below 20-amps. They should finally settle down to about 12-15 amps or so when fully warmed up - red hot we hope.

Not affiliated with MCM/Newark, but I do have this multimeter.

Ken300D

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1982 300D at 351K miles
1984 300SD at 217K miles
1987 300D at 370K miles

Ok.... I am in the market for a way to check electricity...

However, if someone had no meter ( I fried my good Radio Shack one years ago ) and wanted to be able to also check computer codes... would it be best if they got a digital one ? This is what I read in my fuel injection book yesterday... and it caught my eye because it said some things needed to be in the circuit.. and a regular multimeter does not have the high resistance circuit that a digital one does....
Of course we are not talking much money here ... $14.950... LOL. but I would like to know if a digital will do all the same things an analog meter will.... PLUS checking the computer code flashes... ?
thanks
electrically challenged Greg

Greg,
I hate to be the one to break this to ya but, the OM616 you have ain't got no 'puter codes in it nowhere!

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Never a dull moment at Berry Hill Farm.

I am glad you shared that with me.... I will quit looking for that damn module .....

My parents just got a 92 Honda with 55,000 miles on it.. so that is really why I was reading the Fuel Injection book yesterday... and saw that recommendation...and why I need some way to do all electrical stuff...