Honda Acura NSX 1991 Service Manual page 276

Fuel Supply System
(From page 1 I-99)
Turn the ignition switch OFF.
Connect the ECU test harness
between the ECU and connector
(page 1 l-211.
Start the engine.
Measure the voltage between D6
I
I
Is there voltage?
Y E S
terminal and A24 terminal on the
Measure the voltage between D6
minal.
Is there battery voltage?
N O
Disconnect "A" connector from
the ECU only, not the engine
wire harness.
(To page 11-101)
1 l-100
I
Repair open in BLKlRED
N O
ECU ID61 and fuel pump
resistor.
I
I
Substitute a known-good ECU
YES
and recheck. If symptomlindica-
tion goes away, replace the
original ECU.
A23 I-)
Jumper wire
(From page 1 l-99)
I
wire bet-
A23 I-J
Is there voltage? 2
D6 I+)