ACURA NSX 1991 Service Repair Manual

ACURA NSX 1991 Service Repair Manual NSX 1991 ACURA ACURA https://www.carmanualsonline.info/img/32/56988/w960_56988-0.png ACURA NSX 1991 Service Repair Manual
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Page 241 of 1640

ACURA NSX 1991  Service Repair Manual Idle Contro l Syste m
Automati c Transaxl e (A/T ) Gea r Positio n Signa l
(From pag e 11-121 )
Chec k fo r a n ope n in  th e wire :
1 . Tur n th e ignitio n switc h OFF .
2. Reconnec t th e 30 P (C4

Page 242 of 1640

ACURA NSX 1991  Service Repair Manual Neutral Switc h Signa l (M/T )
This signal s th e EC M whe n th e transmissio n i s i n neutral .
Inspectio n o f neutra l switc h signal .
Chec k fo r a n ope n in  th e circuit :
1 . Tur n th e igni

Page 243 of 1640

ACURA NSX 1991  Service Repair Manual Idle Contro l Syste m
Clutch Switc h Signa l (M/T )
This signal s th e EC M whe n th e clutc h is engaged .
Inspection o f clutc h switc h signal .
Chec k fo r a n ope n in  th e circuit :
1. Tur n th

Page 244 of 1640

ACURA NSX 1991  Service Repair Manual (From pag e 11-124 )
Is  ther e approx . 5  V ? EC
M CONNECTOR S
Chec k th e clutc h switch :
1 . Tur n th e ignitio n switc h OFF :
2 . Disconnec t th e 3 P connecto r
fro m th e clutc h switch .
3 .

Page 245 of 1640

ACURA NSX 1991  Service Repair Manual Idle Contro l Syste m
Brake Switc h Signa l
This signal s th e EC M whe n th e brak e peda l i s depressed .
Are th e brak e light s o n withou tdepressin g th e brak e pedal ?Inspec t th e brak e swi

Page 246 of 1640

ACURA NSX 1991  Service Repair Manual 
Starter Switch Signal

This signals the ECM when the engine is cranking.

Inspection of Starter Switch Sig-

nal. 
NOTE:

• M/T: Clutch pedal must be depressed.

• A/T: Transmission in position.

Page 247 of 1640

ACURA NSX 1991  Service Repair Manual Idle Contro l Syste m
Idle Spee d Settin g
Inspection/Adjustmen t
NOTE: Befor e settin g th e idl e speed , chec k th e followin g
items :
—  Th e Chec k Engin e ligh t ha s no t bee n reporte d on

Page 248 of 1640

ACURA NSX 1991  Service Repair Manual 
6. Disconnect the SCS service connector.

7. Depress the accelerator pedal and stabilize the

engine speed at 1,000 rpm, then slowly release the

pedal until the engine idles, then check the idle

sp

Page 249 of 1640

ACURA NSX 1991  Service Repair Manual 
Fuel Supply System

Fuel Lines

NOTE: Check all fuel system lines and hoses for damage, leaks or deterioration, and replace if necessary.

27 N-m

(2.8 kgf-m, 21 Ibf-ft)

27 N-m

(2.8 kgf-m, 21 Ibf-f

Page 250 of 1640

ACURA NSX 1991  Service Repair Manual 
NOTE: Check all hose clamps and retighten if necessary.

Clamp in the middle

Clamp in the middle
Clamp in the middleProCarManuals.com
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