just want to make sure

[pdiggitydogg]

(Note: this is OBDII)
Alright, Ive narrowed the pinning of an gsr engine into Ej8 (thats 96-00 ex) down to only 2 points:
A: 26 - IAB SOL (2ndary Butterfly)
B: N/A (automatic)
C: 21 - Baro Out (Barometric Sensor)
D: N/A (the ex has knock sensor)

Now, what I really want to confirm is that the baro sensor is INSIDE the p72 itself, not some other separate unit.