Liz Greene did say that fire correlates with N but I would look at where your fire planets fall and whether they aspect anything - having Mars or Jupiter aspect a planet placed in an earth sign can change that planet's behavior quite a bit.
Well, I have Sun and Mercury in Leo
- Sun = 1N
- Mercury = 1N
= 2N
Venus and Mars in Cancer in Cancer
- Venus = 1F
- Mars = 1F
= 2F
Moon in Virgo and Cap Rising
- Moon = 1S
- Rising = 1S
= 2S
Jupiter in Pisces
- Jupiter = 1F
= 1F
Saturn in Taurus
- Saturn = 2S (because ruler)
= 2S
Sun aspects
- Sun-Pluto = F
- Sun-Neptune = F
- Sun-Uranus (wide orb) 1/2 T
- Sun-Saturn S
= 2F, S, T
Mercury Aspects
- Mercury-Pluto (wide) 1/2 F
- Mercury-Saturn (wide) 1/2 S
- Mercury-Neptune (in conjunct) 1/2 F
= 1F, 1/2S
Venus Aspects
- Venus-Moon = F
- Venus-Saturn = S
- Venus - Scorpio MC = F
2F, 1S
Mars Aspects
- Mars opposite Capricorn AC = S
- Mars-Venus = F or S
2S
Results
8.5 = Sensing
8 = Feeling
2 = Intuition
0 = Thinking
Dominant = S
Auxiliary = F
Tertiary = N
Last = T
Possible Types
- ISFJ = Si, Fe, Ti, Ne
- ISFP = Fi, Se, Ni, Te
So much ISTJ; I have no air in my chart.