98 D1 speedometer does not work. ODBII code P0500 (VSS) registered by ECU. I removed the VSS and checked resistance (1800 ohms, not sure what the specs are). I hooked up a 35k rpm dremel tool to the input shaft while the vehicle's engine was running and the speedometer read about 30 mph.

Is the VSS bad or is something else going wrong since it measured the speed of the dremel? The part is $200 from Atlantic British...don't want to buy a new one if there may be something else causing the issue. Any input is much appreciated. Thanks guys.

 

Rebuild article in our tech section.

https://landroverforums.com/forum/di...ing-vss-56298/

 

Savannah, thank you for the advice. For clarity, are you confirming that the VSS is the problem despite the fact that it measured the speed of the dremel?

 

It read a speed, but we don't know if it was the correct speed.

On a D1, if the VSS acts up, it can indicate much higher than actual speed easily on the OBDII port. At that point, the ECU assumes you have decided to play on the Autobahn, and it begins shutting down injector pulses (cuts fuel) and withholds spark. In effect, an computerized big brother to make you slow down. I think this happens when it thinks you have approached 114 mph, the escape velocity for the vehicle. If you charged the flux capacitor who knows what could happen next.

 

Disco ..... 114 mph...... Nah.

 

$200 for the VSS? They just keep going up. Not even a year ago they were about $165.

 

It's like $99 at rovahfarm. Not sure if it is OE or not.

 

rebuild or call someone who parts them out ala Paul Grant. I just bought a VSS from him (speedo was getting 'flakey') and had excellent results. Will rebuild the old one and swap that in when it is time.

 

Thanks for all the input fellas. I bit the bullet and ordered the part from Atlantic British. I will update with results.

 

Got the part today. Old one came off easily with a long 5mm hex wrench. The speedometer now works fine, which is a huge relief. I'll hold on to the old VSS and rebuild it when I have some spare time. Thanks again for all the advice!