I have this version of RAVE. It has workshop sections for 1995 onwards, and 1987-1993 NAS. The NAS transfer box section incldes details of speedo cable rather than transducer.

Electrical section is 1995 onwards, so only mentions the sensor version.

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Check the drive cable from the transfer box to the transducer & the drive cable from the transducer to the speedo drive on the back of the speedometer inside the binnacle.
Check that the inner cables (square ends) aren't broken - I suspect that's what happened.
Thought small drive cable went to transducer,this generates a pulse which is sent to the speedo head via electric cables.
(Been ages since I have had RRC)
 
Depending on the model year... my 3.5 RR 1987MY had a direct drive.
Then the 1990MY 3.9 with the Borg T box was around. so if Land Rover now decided to fit a a transducer which there are two versions (like the disco 3.9) either a short direct drive from the T box to an inline transducer mounted on the chassis and onwards with an electrical connection to the dash, later versions the transducer is bolted directly to T box so no short direct drive.

The EFI ECU also receives pauses from the transducer so any issues with that I assume that the EFI would also be affected.
 
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Depending on the model year... my 3.5 RR 1987MY had a direct drive.
Then the 1990MY 3.9 with the Borg T box was around. so if Land Rover now decided to fit a a transducer which there are two versions (like the disco 3.9) either a short direct drive from the T box to an inline transducer mounted on the chassis and onwards with an electrical connection to the dash, later versions the transducer is bolted directly to T box so no short direct drive.

The EFI ECU also receives pauses from the transducer so any issues with that I assume that the EFI would also be affected.

Depending on the model year... my 3.5 RR 1987MY had a direct drive.
Then the 1990MY 3.9 with the Borg T box was around. so if Land Rover now decided to fit a a transducer which there are two versions (like the disco 3.9) either a short direct drive from the T box to an inline transducer mounted on the chassis and onwards with an electrical connection to the dash, later versions the transducer is bolted directly to T box so no short direct drive.

The EFI ECU also receives pauses from the transducer so any issues with that I assume that the EFI would also be affected.
I think You've just solved the problem ! I checked the short drive from the trans to the transducer which is ok... I did notice the motor cut out a few times at low revs ? So maybe I changed a bad transducer for another bad one ????
 

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