Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1991 Saab 900 SPGFACTORY OEM SERVICE PROCEDURE
Fuel Pump
NOTE:
Fuel pump performance is a measurement of fuel pressure and volume availability, not regulated fuel pressure.
FUEL PUMP PERFORMANCE
| Application | Pressure psi (kg/cm2 ) | Min. Vol. in 30 Sec. Pts. (L) |
|---|---|---|
| 900 Non-Turbo | 44 (3.1) | 1.6 (.76) |
| 900 Turbo | 36 (2.5) | 1.6 (.76) |
| 9000 Series | 28-36 (2.0-2.5) | 1.9 (.90) |
REGULATED FUEL PRESSURE
| Application | At Idle w/o Vacuum psi (kg/cm2 ) | At Idle w/Vacuum psi (kg/cm2 ) | ||
|---|---|---|---|---|
| 900 Non-Turbo | (1) | 43 (3.0) | ||
| 900 Turbo | (1) | 36 (2.5) | ||
| 9000 Series | 36-45 (2.5-3.2) | 28-36 (2.0-2.5) | ||
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Factory Service Tools
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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.