Fuel gauge calibration problems???

[FlaRalph]

I am having fuel gauge calibration problems- has anyone else had this kind of problem??

Empty calibration seems OK, but I immersed the sensor in a beer bottle full of gas (I had my wife empty the beer first, of course!!)and NOTHING??? The gauge did not move one IOTA!!

I took the sensor out of the bottle, wiped it down and held my finger over the end- the gauge headed up and read full after about 30-40 seconds??

This proves to me that the 1) the gauge does work and 2)the sensor works??

It is a 7/??? ohm sender unit- it came with the fuel cell from FFR with the kit (Kit #6- a very early kit- OK no wise cracks about the build time) and the gauge is a SW, also included with the kit. The calibration setup is as wired in the car with three "extensions" on the sensor wiring so I can immerse it out of the car. The connections of the extensions are very good electrially.

Anyone else with a early kit have this kind of problem?? Do I have the wrong sensor?? Did your supplied fuel cell sensor work OK with the SW gauge??

Thanks
FlaRalph
Slowly getting there!!!

[FlaRalph]

I think the OHM range is 7/246 if I remember correctly- SW web site calls for for "full"
29-33 OHM's and "empty" 244-250 OHM's. This agrees with ATL's Std sender of 33/240- did FFR specify something different for the Coupes??
Thanks
FlaRalph

[tfalk]

Does your sender have adjustment screws on it? There should be 2, one for empty and one for full...

[ April 22, 2005, 08:52 PM: Message edited by: Ted Falk ]

[FlaRalph]

Found out the problem- my fuel probe is for VDO intruments- not Stewart Warner. It is a 76/6 Ohm system, not the 233/0 Ohm required for SW gauges.

GRRRR! Now I've got to buy a new probe at about $90. Anybody with VDO instruments want to buy a floatless fuel probe- CHEAP???

I tell ya!! These things will nickle and dime you to death!!
Later
FlaRalph