Originally Posted by
cossie moon
Just what I was told by msd when I rewired my pump as I was told if it was direct to battery it would read less volts! I agree with what you say as I would say battery is the best earth!
Probably due to large cable run back to battery when it's up front.
If we get very technical mine is earthed to the body, but the battery earth is on the same bolt, battery is in the boot on mine.