1993 Saab 900 Base, 2D Convertible, StandardFACTORY OEM SERVICE PROCEDURE

Ignition Timing

NOTE: Ignition timing and idle speed on 9000 Series are controlled by ECM, and are not adjustable.
IGNITION TIMING - 900 SERIES (Degrees BTDC @ RPM)

Application Man. Trans. Auto. Trans.
Non-Turbo 14 @ 850 (1) 14 @ 850
Turbo 16 @ 850 16 @ 850
(1) Distributor vacuum hose disconnected.
Fig 1: Identifying Ignition Timing Marks
G121472Courtesy of SAAB-SCANIA OF AMERICA, INC.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.