Why a cam and crank sensor?
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Motronic 1.3 was the first iteration to require both sensors, beginning in 1987. Advanced engine management principles would make an engine of any vintage run more efficiently, and therefore since all Discos came out after 1987 they would all require both sensors. I don't know enough about Range Rovers to know when they abandoned the previous generation of Motronic which used two flywheel sensors, one for engine speed and the other for position reference, but cam and crank were a carryover from that and likely for those same inputs.
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on my D1 my VSS is failing so I will change that out and for good measure change the crank position sensor at the same time - it is a much less expensive part and prone to failure
i haven't really heard of the cam position sensor failing much - it is the most expensive of the 3 so I will let the original keep going - probably doesnt get the heat and oil crude of the other two so less likely to fail
i haven't really heard of the cam position sensor failing much - it is the most expensive of the 3 so I will let the original keep going - probably doesnt get the heat and oil crude of the other two so less likely to fail
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