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yes, if it does not recognize the temp sensor it will suposedly have a fail safe in it to auto cycle the plugs. the sensor suposedly has contacts that close or opens not sure which one once it reaches 130 degrees. It is not a variable resistance sensor it should only after glow if it is really...

the controler card does not know the difference, it is connected to the 12 volt side of the relay. It only cycles the relay just like the ignition switch does. It konws the difference in timing by the glow plug temp sensor. The card will cycle the relay until it reaches the propper temp. When...

i have two resistors that were good when removed, PM me if you want one.

typical from what i have seen the resistor stops passing power when it goes bad because the internals burn in half and stop passing current. I supose it could go bad and not cut the current like it is supposed to. however, when no load is present, you will get the full 24 volts to the relay...

check your batteries and the connections to them and to the buss bar. your input voltage should be higher than 24 volts. I think around 24.8 should be normal. If you don't have the right amount going into the resistor you wont have the right amount coming out. make sure your batteries are...