Compression Ignition Addict
Join Date: Dec 2008
Location: port arthur texas
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Baseically your not going anywhere for a while
Now I can't say for certain on the tuner but every electrical/electronic device has a low voltage threshold. It can't have done it anygood but maybe no real harm.
As far as booster cables unless you want to let it run allday with a brick on the pedal and pretend it's a trickle charger, your not gonna build up enough volts/amps to get it to start. Not with that low a charge and at those temps.
8vlt and below the PCM and FICM will not work so the injectors can't fire. The glow plugs wont work, the fuelpump isn't turning as fast as it should etc etc. Never mind being able to roll the engine over fast enough to generate enough compression to ignite the fuel/air mix.
Pull both batteries and charge them overnight a full charge or replace with good hot batteries.
Lord I shall lead them to the water but I will not try to make them drink