Honda Acura NSX 1991 Service Manual page 265

Troubleshooting Flowchart
Self-diagnosis Check Engine light indicates code 16: A problem in the fuel injector circuit.
The injectors are the solenoid-actuated constant-stroke pintle type consisting of a solenoid, plunger needle valve and housing. When
current is applied to the solenoid coil, the valve lifts up and pressurized fuel is injected close to the intake valve. Because the needle valve
lift and the fuel pressure are constant, the injection quantity is determined by the length of time that the valve is open (i.e., the duration
the current is supplied to the solenoid coil). The injector is sealed by an O-ring and seal ring at the top and bottom. These seals also reduce
operating noise.
PLUNGER
reported on.
jumped (page 1 I-18). CODE
18 is indicated.
Do the ECU Reset Procedures
(page 1 l-19).
Turn the ignition switch
START position.
Is Check Engine light on and does
(To page 1 l-90)
FILTER
to
Intermittent failure, system is OK
at this time (test drive may be
necessary).
Check for poor connections or
loose wires at injectors, injector
resistor and ECU.
S E A L
R I N G
CUSHION
R I N G