Sensor - Honda Acura NSX 1991 Service Manual

PGM-FI Control System
-Troubleshooting Flowchart -
, S e n s o r .
I
The PA sensor is built into the ECU.
Do the ECU Reset Procedures
Turn the ignition switch ON.
Is Check Engine light on an
does it indicate CODE 13?
Y E S
Connect the ECU test harness to
the engine wire harness not to
the ECU (page 1 l-21).
I
Check for continuity between
D5, terminal and body ground.
Does continuity exist?
N O
(To page 1 l-54
PA Sensor
iagnosis Check Engine light indicates code 13: A problem in the Atmospheric Pressure (PA)
Intermittent
system is OK at thls
time (test drive may be
necessary.)
I
0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0
I
Repair short in RED/
Y E S
. O R N w i r e
ECU (05) and the TCS
control unit.
failure,
b e t w e e n
Continuity