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What reads the rpm on a diesel?

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Old 27-08-2010, 04:17 PM
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burnzy
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Default What reads the rpm on a diesel?

As title really car in question is a 1.8 td mondeo as i'v got the car started now but the rev counter isn't working niether is the handbrake light but I suspect that to be the bulb more than anything

cheers in advance for the replys
Old 27-08-2010, 06:27 PM
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DazC
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rpm is driven off the alternator on the older diesels.
Old 27-08-2010, 07:07 PM
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tabetha
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As above, the alt is usually fed from one feed of the three of the alternator, around 8V, outputs on a W terminal if I remember right.
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Old 27-08-2010, 08:34 PM
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burnzy
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it's ok now thanks lads it wasn't a faulty connection in the end, and managed to get it all working again after proving out some wires
Old 28-08-2010, 09:51 AM
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Most modern diesel engine speed is picked up at the fuel pump.


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