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Saab
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1993
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9000 L4-2290cc 2.3L DOHC Turbo EFI
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Repair and Diagnosis
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Powertrain Management
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Computers and Control Systems
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Description and Operation
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ECM Output Signals
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Oxygen Sensor, Preheating
Oxygen Sensor, Preheating
Oxygen Sensor Preheating:
The circuit for preheating the
oxygen sensor
is grounded via pin 50 of the ECM.
