Saab 1987 900 Owner's Manual page 45

..
II The Crankcase Emission Control Sys-
tem
III The Evaporative Emission Control Sys-
tem
Engine Families
1987 Saabs imported to the United States
are divided into various engine families
(naturally aspirated and turbocharged).
The emission control standards they meet
are indicated below. The engine family and
appropriate tune-up specifications are
identified on a label affIxed to the left front
inner fender.
HSA2.0V6FNT8 (Naturally-aspirated
8 valve)
HSA2.0V5FNB3 (Naturally-aspirated
16 valve)
HSA2.0V5FTBX (Turbo, 16 valve)
These engine families meet both EPA Fede-
ral Standards and California State Stan-
dards and are equipped with the following
. systems to ensure compliance with the app-
licable standards:
A.
Mechanical injection system (CIS) (8
valve)
B. Electronic injection system (LH) (16 val-
ve)
C. Decel dashpot (automa tic transmission,
8 valve, and all 16 valve
D. Decel fuel shut off (manual transmis-
sion, 8 valve).
E. Lambda control system (8 valve)
F. Catalytic converter
I Exhaust emission
control systems
The fuel injection system allows precise fuel
metering which results in low baseline
emissions while retaining good drivebility,
Technical description 43
performance and economy. The intake air
flow determines the correct momentary
quantity of fuel metered to the four intake
port injectors for most effIcient combus-
tion. The engine draws in more or less air
depending on its speed and the load app-
lied.
A Mechanical injection system (CIS), 8 valve engines
SG206
1. Fuel tank
9. Injection valves (4)
2. Fuel pumps
10. Thermo-time switch
3. Fuel accumulator
11. Auxiliary air valve
4.
Fuel filter 12. Line pressure regulator
5. Fuel distributor 13. Air cleaner
6. Control pressure regulator
14 . Modulating valve*
7 .
Air flow sensor pIa te
15. Electronic control unit*
8.
Cold start valve 16. Oxygen sensor*
*) Lambda system