JPI-900 fuel setup

[Wingover]

Wanted to get more info from people who installed the JPI900/930.  I see the options to buy it with fuel qty sensors.  In the M20J when you have 4 fuel senders in two tanks, which option do you choose? 2 tanks or 4 tanks kit?

[ArtVandelay]

2 tanks, the 2 senders for each tank are in series.

[0TreeLemur]

@Wingover I love the JPI 900.   One suggestion.   When you calibrate fuel senders in your J as described in the installation manual- after each 8 gallons, give the plane a little shake.  Sometimes the senders can get hung up in their motion when static. 

When my A&P and I performed that calibration I noticed that when we went from 16 to 24 gallons in the right tank, the addition of that 8 gallons didn't change the resistance much as displayed on the JPI in calibration mode.  When he started adding the last 8 gallons, I noticed the resistance value jumped.

 

[mmcdaniel33]

When Sarasota Aviation put in my JPI 900 in my 77 M20J with two inop original fuel guages we put in 4 CEIS fuel senders.