Fuel quanity gauge replacement

[MtnMike777]

The fuel gauge on my 1995 model 2002 fslm comp ski boat has gone bad. It is not the sender. We tested it.

After removing the gauge, I can wiggle the sending unit wire spade connection on the gauge and the needle jumps all around. I installed a new spade connector, and had same problem so it's not the wiring, it's inside the gauge.

I will be buying a new gauge. The question I have is: How do I calibrate an after market gauge (VDO no longer makes this exact one) for my fuel tank? Do I have to buy a new matching sending unit also?

Thanks for any help,

Mike

[TeamAllen]

Mine is a 1997 but I replaced my VDO with this Faria. I didn't think about it being any different or having to calibrate anything. It works better than the old one ever did. Can't go too wrong for $18?
http://www.boatersland.com/far-12901.html