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.
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HOMESERVICE MANUALSSAAB1987900 BASE, 2D HATCHBACK, 2.0 J, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMFUEL INJECTION SYSTEM - LH (16-VALVE)TESTINGTHROTTLE CONTROL TEST (OPEN POSITION)
1987 Saab 900 Base, 2D Hatchback, 2.0 J, Automatic
Throttle Control Test (Open Position)
1987 Saab 900 Base, 2D Hatchback, 2.0 J, AutomaticSECTION Throttle Control Test (Open Position)
- Ensure throttle is not binding on floor mats, and that throttle cable is tight. Remove harness connector from throttle switch. Connect ohmmeter across throttle switch terminals No. 2 and 3. See Figure .
- Open throttle slowly. Resistance should be present just before throttle reaches WOT position. Move throttle to WOT position. Resistance should be present. If resistance is not present, loosen throttle switch adjusting screws, rotate switch to correct switch position and repeat THROTTLE CONTROL TEST (CLOSED POSITION) test.
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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.