Honda Acura NSX 1991 Service Manual page 228

PG M-FI Control System
-Troubleshooting
Sensor ciucuit.
The TA sensor is a temperature dependant resistor (thermistor). 1
increases as shown below.
I
Turn the ignition switch ON.
Is Check Engine light on and
does it indicate CODE IO?
YES
Turn the ignition switch OFF.
Measure resistance between the
2 terminals on the TA sensor.
Is there l-4 kR ?
YES
(To page 1 l-53)
II-52
Flowchart TA Sensor
THERMISTOR
I
Intermittent
system is OK at this
time (test drive may be
Check for poor con-
nections or loose wires
at TA sensor Cl 40 and
ECU.
Replace TA sensor.
RESISTANCE
-20 0 204060801001201 %)
-4 32 68104140176212248("F)
INTAKE AIR TEMPERATURE
failure,
I
TA SENSOR