Ok here is the latest.

As I mentioned before I just installed 5 new gp's about 2 weeks ago.

This morning I went a tested the gp wiring and gp's along with the relay voltage. I followed Dieselgiants write up that is posted at

http://dieselgiant.com/glowplugrepair.htm DG, Thanks for the great info

gps and wiring tested ok but I had high readings at relay plug hole 6 and 8

these correspond to what appear to me as temp sensors on the side of the block in line with the gp's

the front one between gp 1 and 2 had an ohm reading of 3.2 and the mid back one between gp 2 and 3 was around 0.7. my meter reads dead nuts on so no correction factor was needed

another question is: on the relay connection block the front sensor has a designation of "NTC" and a number 8 and the mid back sensor has a "B" and a number 6....what does the "NTC" and "B" stand for?