Thanks for the responses.
Tegger, we haven't started the engine yet. The error code appears when
the ignition key is in the 'On' position. We've already tried leaving
the battery disconnected overnight to "clear" the code, we also tried
(in desperation) connecting the old IACV, but the code won't go away. I
also tried disconnecting the TP and MAP sensors, but it still blinks
"14" (IAC). I checked the resistance of the new IAC and one pair of
terminals read 19 ohms, all other pairs read open. Could it be a bad
Mike: I wish it were, but the code appears even before we start the
engine. We haven't done that yet, because we're worried the ECU may be
Tomorrow I'm going to try disconnecting the same sensors on a Civic of
the same series (EK) and see what error pops up.
The owner is really worried, knowing the cost of a new ECU..