how to recalibrate incompatible senders and gauges

[Pete Lewis]

recently Myself and Ray installed a Fuel Wizard in his Burlington Beretta   this has a ford escort tank and std  thermo smiths gauges,

 they are not compatible as from completely differing designs   and readings were somewhat out !!

 

ray picked up a useful ecu from    Spyida designs    

 

 https://www.spiyda.com/magento/index.php/fuel-gauge-wizard-mk3.html

 

this does either temp gauges or fuel gauges

 

its a bit of a fiddle pressing buttons and count flashes but once youve messed up the second try is easy,

you need to be able to count to 16  !!!

 

you do need to get the resistance ohms from the tank unit or temp sender 

 

we were only doing the fuel tank so a stiff wire down its neck and pull the float to E 1/4  1/2  3/4   F  and note the readings 

on a pad,   they supply a 22 turn potentiometer you can then set to the values and use this to set the gauge needle where you want it, this saves having to empty and refill the fuel tank ( if the float was easy to remove you could do this with the float)

once used  remove  and re connect the tank, 

 

this should not be used to correct basic system faults but if you cant get your gauge to show what you want its a natty gadget

 

and costs  around £34

 

 

just an idea 

 

Pete

 

 

 

[Ben Caswell]

Marlin roadsters with the Ford tank suffer with this problem, when gauge reads ¼ full the tank is actually empty.

 

I found out from another member that installing a 15 ohm  resistor from Maplins in series to the feed from the gauge to the sender unit puts the gauge about right.