1987 NISSAN PULSAR Workshop Manual

Page 81 of 238

NISSAN PULSAR 1987  Workshop Manual 
Cooling and Heating Systems 81 
 continuous stream of bubbles indicates that the refriger- 
ant charge is low.
 
A large number of bubbles or foam indicates that 
the refrigerant charge is very low.

Page 82 of 238

NISSAN PULSAR 1987  Workshop Manual 
82 
FUEL AND ENGINE MANAGEMENT 
CAUTION: To prevent severe electrical shock, extreme care must be taken when 
working on or near the electronic ignition  system as dangerous high tension voltages 
ar

Page 83 of 238

NISSAN PULSAR 1987  Workshop Manual 
Fuel and Engine Management 83 
 the fuel pump will not operate until the oil 
pressure is sufficient to extinguish the oil 
pressure warning lamp. Therefore it will be 
necessary to operate the  star

Page 84 of 238

NISSAN PULSAR 1987  Workshop Manual 
Fuel and Engine Management 
(4) MAP sensor faulty or supply hose discon- 
nected or blocked: Check the vacuum supply hose. 
Check the operation of the MAP sensor.
 
EXCESSIVE FUEL CONSUMPTION 
(1)  B

Page 85 of 238

NISSAN PULSAR 1987  Workshop Manual 
Fuel and Engine Management 85 
 
 
View of the 1.6 liter engine showing the engine management components. Air cleaner removed for clarity.  
series of tests on various components in the system 
and r

Page 86 of 238

NISSAN PULSAR 1987  Workshop Manual 
86 Fuel and Engine Management 
 other. The fuel pressure is maintained at a constant 
pressure relevant to the manifold vacuum. A dispos- 
able paper element fuel filter is mounted on the engine 
bul

Page 87 of 238

NISSAN PULSAR 1987  Workshop Manual 
Fuel and Engine Management 87 
 
Fuel system wiring diagram for the 1.6 liter engine.

Page 88 of 238

NISSAN PULSAR 1987  Workshop Manual 
88 Fuel and Engine Management 
 
 
Fuel system wiring diagram for the 1.8 liter engine. 
BR   K