Saab 1987 900 Owner's Manual page 77

A. Emission system maintenance
(continued)
Oxygen sensor - Replace sensor ............. .. .... ... .. ... ........ .
(Reset service reminder lamp, 8 valve
engines only)
Idle speed - Check idle speed and adjust to
specification, if necessary .............................................. .
Deceleration system - Check opera tion, including throttle
switch if so eqUIpped; adjust to specification, if necessary
Overyressure safety switch - Check operation.
(Tur1:5o only) ..... ..................... ................ ... ................. ... .
X
X
X
Car care and scheduled maintenance 75
Where "miles" or "months" are shown, perform at
whichever limit is reached first.
Int. Oil &
FilterChg.
(Every 3,750
Mi. or 6 Mos.)
X-Turbo (3)
X
X-Every 30,000 miles
(every 60,000 miles
16 valve engines).
X-Every 30,000 miles.
X- Every 60,000 miles
(and whenever the
vehicle is relocated
for a prolonged period
of operation at a
different altitude).
X-Every 60,000 miles
X-Evely 30,000
miles.
2. These columns refer to provisions ofthe California Emission Control System Warranty and apply only to residents of California.
3. The Intermediate Oil And Filter Change service is required for Turbo models.
It
is suggested also for models with naturally aspirated engines when operated under
severe service conditions including extensive idling, stop-and-go driving andJor driving in cold climates over repeated short trips without sufficient engine warm-up.