okay, so since obd0 DOES have a cable speedometer, and IF he is using an obd0 motor and obd0 ecu, yet still has his obd2 gauge cluster AND obd2 speedometer, wouldn't that explain at LEAST the speedometer not working?
also, if he's using an obd0 motor, and still has the obd0 sensors on the motor, the temperature gauge on the dash would not work, because of the differences in sensors.
as far as the fuel gauge, im not sure...possibly the difference in obd between the ecu and gauge cluster?
pull your head out of your ass. were tryin to help the kid here.
edit:
the P2T was from the USDM civic si, with a B16A2, CLEARLY LABELED B16A2. there's NO WAY that this is his motor.
if it's a B16A, it's obd0, unless it's from a VTi, which is RARE, and i doubt this is his motor.
if it was obd1 or 2, it would be a B16A Sir II, B16A2, or B16A3
edit edit: you can't own when you're wrong