copied from a member who posted in my thread on H-T

are there any other codes? when does the code come on? during vtec? idle? normal driving?

per Helms, possible causes:

Fuel pump insufficient fuel pressure, amount of flow
fuel line clogging, blockage, leakage
fuel filter clogging
fuel pressure regulator stuck open
distributor malfunction
ignition coil wire open/leakage
ignition control module malfunction
valves carbon deposit
compression low
IAC vavle malfunction
Fast idle thermo valve malfunction
fuel does not meet owners manual spec, lack of fuel
VTEC system malfunction

test procedures and more info on page 11-78 of the integra manual