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A gasoline engine was vacuum in the manifold, that's just the way it works. This vacuum can later be used for brakes, etc. In a diesel there is no vacuum, so the brake assist has to be generated by an external pump powered by the engine. A diesel would work just fine without the vacuum pump, in fact it would have that much less load on its accessory belt or camshaft.
If your diesel has a turbo, then you can monitor the intake air pressure. It's not much, but always something.
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e·co·mod·ding: the art of turning vehicles into what they should be
What matters is where you're going, not how fast.
"... we humans tend to screw up everything that's good enough as it is...or everything that we're attracted to, we love to go and defile it." - Chris Cornell
[Old] Piwoslaw's Peugeot 307sw modding thread
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