nsx11indxb.pdf

Fuel and Emissions (’93−’94 Models)
Special Tools 11−2. . . . . . . . . . . . . . . . .
Component Location Index 11−3. . . .
System Description
Vacuum Connections 11−6. . . . . .
Electrical Connections 11−10. . . . .
System Connectors
Engine Compartment,
Right Side 11−22. . . . . . . . . .
Engine Compartment,
Left Side 11−20. . . . . . . . . . .
Behind the Seat Back
Panels 11−24. . . . . . . . . . . . .
Front Compartment and
Under Dash 11−28. . . . . . . . .
Troubleshooting
DTC Chart 11−32. . . . . . . . . . . . . . . .
Self−diagnostic Procedures 11−34
How to Read Flowcharts 11−39. . .
PGM−FI System
System Description 11−40. . . . . . . . . . .
Troubleshooting Flowcharts
Engine Will Not Start 11−42. . . . . . .
MIL Never Comes On 11−43. . . . . .
MIL Stays On 11−44. . . . . . . . . . . . .
Idle Control System
DTC Chart 11−84. . . . . . . . . . . . . . . . . . .
System Description 11−85. . . . . . . . . . .
Troubleshooting Flowcharts
Air Conditioning Signal 11−90. . . .
Alternator FR Signal 11−92. . . . . . .
A/T Gear Position
Signal 11−94. . . . . . . . . . . . . . . . .
Neutral Switch Signal
(M/T) 11−96. . . . . . . . . . . . . . . . . .
Clutch Switch Signal
(M/T) 11−98. . . . . . . . . . . . . . . . . .
Starter Switch Signal 11−100. . . . . .
Fast Idle Thermo Valve 11−101. . . . . . . .
Idle Speed Setting 11−102. . . . . . . . . . . .
Fuel Supply System
DTC Chart 11−104. . . . . . . . . . . . . . . . . . .
System Description 11−105. . . . . . . . . . .
Fuel Pressure 11−105. . . . . . . . . . . . . . . .
Fuel Injectors 11−110. . . . . . . . . . . . . . . .
Fuel Injector Resistor 11−112. . . . . . . . .
Fuel Pressure Regulator 11−113. . . . . .
Fuel Filter 11−114. . . . . . . . . . . . . . . . . . . .
Fuel Pump Description 11−115. . . . . . . .
Fuel Pump 11−119. . . . . . . . . . . . . . . . . . .
PGM−FI Main Relay 11−122. . . . . . . . . . .
Troubleshooting Flowcharts
Fuel Pump Resistor 11−124. . . . . . .
PGM−FI Main Relay 11−120. . . . . . . .
Fuel Tank 11−126. . . . . . . . . . . . . . . . . . . .
Intake Air System
DTC Chart 11−127. . . . . . . . . . . . . . . . . . .
System Description 11−128. . . . . . . . . . .
Air Cleaner 11−129. . . . . . . . . . . . . . . . . . .
Throttle Cable 11−130. . . . . . . . . . . . . . . .
Throttle Body
Description 11−131. . . . . . . . . . . . . . .
Inspection 11−131. . . . . . . . . . . . . . . .
Disassembly 11−133. . . . . . . . . . . . . .
Throttle Valve Dashpot System
Description 11−134. . . . . . . . . . . . . . .
Throttle Valve Dashpot System
Testing 11−135. . . . . . . . . . . . . . . . . . .
Intake Air Bypass (IAB) Control
System 11−136. . . . . . . . . . . . . . . . . . .
Intake Air Bypass (IAB) Control
Valve Testing 11−139. . . . . . . . . . . . .
Intake Air Bypass (IAB) Control
Valve Disassembly 11−140. . . . . . . .
Emission Control System
DTC Chart 11−141. . . . . . . . . . . . . . . . . . .
System Description 11−142. . . . . . . . . . .
Tailpipe Emission 11−142. . . . . . . . . . . . .
Three Way Catalytic Converter (TWC)
Description 11−143. . . . . . . . . . . . . . .
Inspection 11−144. . . . . . . . . . . . . . . .
Positive Crankcase (PCV)
System 11−151. . . . . . . . . . . . . . . . . . .
Evaporative Emission (EVAP) Controls
STET 11−152. . . . . . . . . . . . . . . . . . . . .
Troubleshooting
Flowchart 11−154. . . . . . . . . . . . .
EVAP Two Way Valve
Testing 11−157. . . . . . . . . . . . . . . .