Honda Acura NSX 1991 Service Manual page 177

Fuel and Emission
Tools ...........................................
Special
Component Locations
Index ..................................................
System Description
Vacuum Connections ............................
Electrical Connections ...........................
Troubleshooting
Guide ..........................
Troubleshooting
Self-diagnostic Procedures .....................
How to Read Flowcharts ........................
PGM-FI Control System
Troubleshooting Flowcharts
System Description ...............................
Electronic Control Unit ...........................
Oxygen Sensors ........ ..?
Oxygen Sensor Heater ..<...,..:., , ..............
Fuel Supply System ...............................
System ............................
Fuel Metering
Manifold Absolute Pressure
Sensor ............ .: ..............................
Sensor ..............................
Coolant Temperature Sensor ..................
Throttle Angle Sensor ............................
intake Air Temperature Sensor ................
Atmospheric Pressure Sensor .................
Ignition Output Signal ............................
Vehicle Speed Sensor ; ...........................
Ignition Timing Adjuster .........................
Sensor .......................................
Knock
A/T FI Signal ...................
Idle Control System
System Troubleshooting Guide ...................
Description ...................................
System
Troubleshooting Flowcharts
Electronic Air Control Valve ....................
Air Conditioning Signal ..........................
Alternator FR Signal ..............................
A/T Shift Position Signal ........................
M/T Neutral Switch Signal ......................
Clutch Switch Signal .............................
Starter Switch Signal .............................
Fast Idle Valve ..........................................
1 1 - 2
1 1 - 5
1 1 - 8
11-16
1 l-l 8
11-23
1 l-24
I I - 2 6
I I - 3 0
1 l-32
11-36
11-38
1 I-40
1 1 - 4 6
11-48
1 I-50
1 I'-54
11-56
11-58
1 I-60
1 1 - 6 2
Evaporative
. .................... 1 l-64
1 l-66
1 1 - 6 7
1 l-70
1 1 - 7 2
11-74
1 1 - 7 6
11-78
1 I-80
11-82
11-83
11-84
Fuel Supply System
System Troubleshooting Guide ...................
System Description ...................................
Fuel Pressure ...........................................
Fuel Injectors ...........................................
Injector Resistor .......................................
Pressure Regulator ....................................
Fuel Filter ................................................ 1 1 - 9 7
Fuel Pump ............................................... 11-98
Fuel Pump Resistor ...................................
Air Intake System
System Troubleshooting Guide ...................
System Description ...................................
Air Cleaner .............................................. 11-112
Throttle Cable ...................
Throttle Body ................. ..)
Chamber Volume Control System ................
Emission Control System
System Troubleshooting Guide ...................
System Description ...................................
Tailpipe Emission ......................................
Catalytic Converter ...................................
Exhaust Gas Recirculation System
Positive Crankcase Ventilation
System .... ;:':..? .....................................
Emission Controls ....................
...
11-86
II-87
11-87
11-89
I I - 9 4
11-95
1 I-106
1 l-l 10
1 l-l 11
............... 11-114
1 l-l 19
I I - I '
...............
11-134
11-135