Quote:
Originally Posted by firemediceric
I guess now what I need is a definitive answer on what specifically triggers the relay to close and send power onto the glow plugs?
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The red/brown wire is powered when the ignition switch is placed in the "run" or "start"position. That starts the timer sequence. It also prevents the timer from sequencing back on unless power is removed and subsequently restored.
Quote:
Originally Posted by firemediceric
Would I be correct that if the violet wire is still supplying voltage once the engine has been running for a few minutes, this is bad?
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The violet wire should be powered
only when the ignition switch is in the "start" position. The cycle ends when power is removed from the start circuit.
It sounds like you have an interruption in the "run" circuit (red/black wire), such that the timer "thinks" that the ignition switch has been cycled off and back on again, thereby restarting the timer sequence.