My car has the P0462 (Fuel Level Sensor low input) P0500 (Vehicle speed sensor circuit fault) but both the speedometer and the fuel gauge appear to be working normally. However the tach bounces between the approximate engine speed and 0 (not all of the time but frequently).
The car doesn't have any other symptoms it runs and drives fine. Doesn't bog down or have any other known issues.
I am not sure where I should start with troubleshooting this issue as it seems odd that these problems could be unrelated given that they basically started at the same time. Is it possible that the P0500 has the same cause as the tachometer?
Engine is 1.8L with a manual transmission.