fendervg 32 Posted July 6, 2021 2 hours ago, MJA said: I have bought the voltage reg the repair the fuel and temp gauges on my 16v clocks. The rest of the clocks (speedo. rev etc) all work fine. As Dox says that reg is just for the fuel and temp parts. I believe i blew the reg when testing the fuel pumps with external power. How did you test the pumps? I usually just hook up a leisure battery direct to the terminals at the pump, with a toggle switch on the positive wire. Did you inject power directly at the relay block? Quote Share this post Link to post Share on other sites