Quote:
Originally Posted by Grubby
George: you said:
"but the trick is that to disable it, you need to provide constant 12V to that solenoid when the key is on -- not disconnect it. Running with it disconnected will cause the timing to always be excessively advanced, which has detrimental long-term effects."
But I thought it already had constant power to it when the key is on. My interpretation of the D24T glow plug wiring schematic shows that it shares a circuit with the pump shut off solenoid, which is hot with key on, of course. Is there an external switch in the circuit? Forgive me if I sound stupid, but I'm confused. Thanks.
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Abe, the solenoid does get constant power, but only when below 3000-4000 ft. elevation. The switch is normally closed until elevation increases and then the circuit is open, cutting power to the solenoid.
Here's the picture from your greenbook.
Wren
