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 MANUALSSAAB20029-3 SE, 2D CONVERTIBLE, AUTOMATICREPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEMENGINE CONTROLS - BASIC TESTINGFUEL SYSTEMFUEL PRESSURE & FLOW TESTSCHECKING INJECTOR FLOW CAPACITY (9-5)
2002 Saab 9-3 SE, 2D Convertible, Automatic
Checking Injector Flow Capacity (9-5)
2002 Saab 9-3 SE, 2D Convertible, AutomaticSECTION Checking Injector Flow Capacity (9-5)
CAUTION:
The utmost cleanliness must be observed when handling the fuel rails and injectors. Wash around the injectors, fuel rail and intake manifold and dry with compressed air.
- Remove the fuel rail.
- Fit a transparent hose onto the nozzle. This hose should be about 40 cm long and have an inside diameter of 15 mm. See Fig 1 .
- Place the end of the hose in a receptacle or measuring flask.
- Connect each injector to its proper connector.
- Start the fuel pump by connecting Lead Fault Diagnosis, LH-System Diagnostics Cable (83 93 886) to the upper pin on fuse No. 8 and the lower pin of fuse No. 19.
- Perform a flow capacity test with the diagnostic tool. The diagnostic tool then activates the injector concerned with battery voltage for exactly 30 seconds.
- Check the quantity of fuel against INJECTOR CAPACITY FIGURES .
- Replace any defective injectors. See Fig 2 .
- Attach the fuel rail.
INJECTOR CAPACITY FIGURES
| Engine Type | Flow Capacity (ml / 30 sec.) | Maximum Permissible Difference Between Injectors |
|---|---|---|
| B235E | 176 +/- 7 | 14 ml |
| B205E | 127 +/- 5 | 10 ml |
| B308E | 109 +/- 4 | 8 ml |
RENDER: 1.0x
NO RELATED
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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.