Fuel gauge conversion from oil pressure guage? Options

[Eddie914]

I don't have a fuel gauge since it was replaced with a combo oil pressure/temp gauge for the 2.7 6 cylinder.

I have heard that an oil pressure gauge can be converted for use as a fuel guage. Geoff told me that there is a thread that describes the conversion. I have tried looking at the classic threads and performing a search, but have had no luck.

Can anybody help me?

Eddie

[lapuwali]

I got my numbers by hooking a DMM up to a fuel sender, and sliding the float from top to bottom. I have a 10-180 ohm VDO fuel gauge on my shelf, it pegs at empty if I hook it up to the 914 sender with the float at the top, and reads slightly above empty with the float at the bottom. Not useful.

The aftermarket tube type sender is capacitive. It has no moving parts. Adding a low-fuel light that operates in any way like the stock one isn't possible. The stock one is very nice in that it simply uses a pair of contacts at the bottom that are closed when the float touches them, thus it's completely independent of the variable resistive sender used to move the needle. If one fails, the other continues to work. The low-fuel light setups I've seen on the capacitive senders simply use a comparator in the gauge itself, which means if the sender fails, both the needle and the light don't work. That said, the capacitive senders are very reliable, and almost never fail.