Saab 9-3 P0336: Crankshaft Position Sensor “A” Circuit Range/Performance

The Saab 9-3 utilizes a crankshaft position sensor (CKP) in order to regulate the engine timing. This sensor uses a reluctor to gauge the position of the crank. When the 9-3’s ECM determines that the signal coming from this sensor is out of range, it’ll throw the P0336 trouble code.  P0336 is most commonly caused … Read more Saab 9-3 P0336: Crankshaft Position Sensor “A” Circuit Range/Performance

Saab 9-3 P0125: Insufficient Coolant Temp for Closed Loop Fuel Control

P0125 is a generic OBD-II code.  If your Saab 9-3 has registered it, means that the ECM/PCM is getting a signal from the engine coolant temperature sensor (ECT) that the engine is not warm enough to enter closed loop fuel control.  P0125 is usually caused by a bad thermostat, low coolant, or a bad ECT … Read more Saab 9-3 P0125: Insufficient Coolant Temp for Closed Loop Fuel Control

Saab 9-3 P0191:  Fuel Rail Pressure Sensor → Circuit “A” → Range/Performance

  P0191 is a common OBD-II code.  It indicates that the fuel rail pressure sensor is receiving a signal that is outside of its normal range.  This is a generic code, which indicates that it has the same meaning for the Saab 9-3 as it would any other vehicle.     P0191 is typically caused … Read more Saab 9-3 P0191:  Fuel Rail Pressure Sensor → Circuit “A” → Range/Performance