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 MANUALSSAAB20039-3 CONVERTIBLE (9400) L4-2.0L TURBO (2.0 HOT)REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSDESCRIPTION AND OPERATIONDETAILED DESCRIPTIONFUEL SHUT-OFF
2003 Saab 9-3 Convertible (9400) L4-2.0L Turbo (2.0 HOT)
Fuel Shut-Off
2003 Saab 9-3 Convertible (9400) L4-2.0L Turbo (2.0 HOT)SECTION Fuel Shut-Off
Fuel Shut-off
Fuel shut-off will take place if any of the following criteria are fulfilled:
- +15 supply missing
- fully depressed accelerator pedal during starter motor cranking
- engine speed above (depending on coolant temp.):
- coolant temperature less than 60 degree - above 6300 rpm
- coolant temperature 80 degree - above 6400 rpm
- air mass/combustion exceeds a calibrated value, unique to each car model
- immobilizer code incorrect
- throttle rotated manually while engine running
- major fault in throttle control
- a pedal sensor fault if the engine speed exceeds 2200 rpm
- ignition discharge module not powered
- engine speed above 1800 rpm, accelerator pedal fully released and coolant temperature exceeds 20 degree C. This applies in 3rd, 4th and 5th gears on cars with manual gearbox and in 2nd, 3rd and 4th gears on cars with automatic transmission. Injection starts again at 1400 rpm.
Diagnostics
If TWICE does not send "Immobilizer OFF" after the ignition has been turned on or if Trionic T7, TWICE or MIU control module has been replaced and the immobilizer code has not been programmed in TWICE, diagnostic trouble code P1460 will be generated and the engine will not start.
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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.