P0122 BUICK Throttle Position Sensor 1 Circuit Low Voltage

Possible causes – Faulty throttle position sensor– Throttle position sensor harness is open or shorted– Throttle position sensor circuit poor electrical connection When is the obd code mean? An excessively low voltage from the Throttle Position (TP) Sensor is sent to Engine Control Module (ECM). Symptoms – Engine Light ON (or Service Engine Soon Warning…

P0121 BUICK Throttle Position Sensor 1 Performance

Possible causes – Faulty throttle position sensor– Throttle position sensor harness is open or shorted– Throttle position sensor circuit poor electrical connection– Faulty Engine Control Module (ECM) When is the obd code mean? Malfunction is detected when an excessively low or high voltage from the sensor is sent to ECM. Symptoms – Engine Light ON…

P0307 BUICK Cylinder 7 Misfire Detected

Possible causes – Faulty spark plug 7– Clogged or faulty fuel injector 7– Faulty ignition coil 7– Fuel injector 7 harness is open or shorted– Fuel injector 7 circuit poor electrical connection– Ignition coil 7 harness is open or shorted– Ignition coil 7 circuit poor electrical connection– Insufficient cylinder 7 compression– Incorrect fuel pressure– Intake…

P0804 BUICK Skip Shift Lamp Control Circuit

Possible causes – Faulty Skip Shift Lamp– Skip Shift Lamp harness is open or shorted– Skip Shift Lamp circuit poor electrical connection When is the obd code mean? When the Powertrain Control Module (PCM) commands the control circuit to a component OFF, the voltage potential of the circuit should be high (near battery voltage). If…

P0803 BUICK Skip Shift Solenoid Control Circuit

Possible causes – Faulty Skip Shift Solenoid– Skip Shift Solenoid harness is open or shorted– Skip Shift Solenoid circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P0803 BUICK OBD Code Description An ignition voltage is supplied to the Skip Shift solenoid coil. The Powertrain Control Module (PCM) controls…

P0300 BUICK Cylinder Misfire Detected Random Cylinders

Possible causes – Faulty spark plug (s) – Faulty ignition coil (s) – Clogged or faulty fuel injector (s)– Intake air leak– Fuel injectors harness is open or shorted– Fuel Injectors circuit poor electrical connection– Ignition coils harness is open or shorted– Ignition coils circuit poor electrical connection– Insufficient cylinders compression– Incorrect fuel pressure Tech…

P0301 BUICK Cylinder 1 Misfire Detected

Possible causes – Faulty spark plug 1– Clogged or faulty fuel injector 1– Faulty ignition coil 1– Fuel injector 1 harness is open or shorted– Fuel injector 1 circuit poor electrical connection– Ignition coil 1 harness is open or shorted– Ignition coil 1 circuit poor electrical connection– Insufficient cylinder 1 compression– Incorrect fuel pressure– Intake…

P0302 BUICK Cylinder 2 Misfire Detected

Possible causes – Faulty spark plug 2– Clogged or faulty fuel injector 2– Faulty ignition coil 2– Fuel injector 2 harness is open or shorted– Fuel injector 2 circuit poor electrical connection– Ignition coil 2 harness is open or shorted– Ignition coil 2 circuit poor electrical connection– Insufficient cylinder 2 compression– Incorrect fuel pressure– Intake…

P0303 BUICK Cylinder 3 Misfire Detected

Possible causes – Faulty spark plug 3– Clogged or faulty fuel injector 3– Faulty ignition coil 3– Fuel injector 3 harness is open or shorted– Fuel injector 3 circuit poor electrical connection– Ignition coil 3 harness is open or shorted– Ignition coil 3 circuit poor electrical connection– Insufficient cylinder 3 compression– Incorrect fuel pressure– Intake…

P0304 BUICK Cylinder 4 Misfire Detected

Possible causes – Faulty spark plug 4– Clogged or faulty fuel injector 4– Faulty ignition coil 4– Fuel injector 4 harness is open or shorted– Fuel injector 4 circuit poor electrical connection– Ignition coil 4 harness is open or shorted– Ignition coil 4 circuit poor electrical connection– Insufficient cylinder 4 compression– Incorrect fuel pressure– Intake…