Acura NSX 1991 Manual page 761

Main Menu
Ignition System
Idle Speed Inspection
1. Start the engine. Hold the engine at 3,000 rpm with
no load (A/T in
the radiator fan comes on, then let it idle.
2. Connect a tachometer to the test tachometer
connector.
TACHOMETER
JUMP START
TERMINAL
in the engine
compartment
fuse/relay box
Idle Speed (rpm):
NOTE: All electrical systems are turned OFF.
3. Adjust the idle speed if necessary (see
Table of Contents
position, M/T in neutral) until
TEST
TACHOMETER
CONNECTOR
TEST
TACHOMETER
CONNECTOR
section 11).
Ignition Control Module (ICM)
Replacement
1. Disconnect the 8-P and 6-P connectors from the ig-
nition control module (ICM).
2. Remove the two mounting bolts, and slide the ICM
out toward the front side.
CAUTION: Be careful not to damage the vacuum
hoses when removing the ICM.
MOUNTING BOLTS
12 N-m
11.2 kg-m, 8.7 Ib-ft)
8-P CONNECTOR
SERVICE LOOP
6-P CONNECTOR
G103