Category: Chevrolet

P1034 Chevrolet Nitrogen Oxides Sensor Signal Outside Tolerance Possible causes – Faulty nitrogen oxides (NOx) sensor– Nitrogen oxides (NOx) sensor harness is open or shorted– Nitrogen oxides (NOx) sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1034 Chevrolet Description Nitrogen oxides (NOx) sensor – signal outside tolerance

P1035 Chevrolet Nitrogen Oxides Sensor Range Performance Problem Possible causes – Faulty nitrogen oxides (NOx) sensor– Nitrogen oxides (NOx) sensor harness is open or shorted– Nitrogen oxides (NOx) sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1035 Chevrolet Description Nitrogen oxides (NOx) sensor – range/performance problem

P1028 Chevrolet Throttle Body Internal Fault Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1029 Chevrolet Intake Manifold Air Control Valve Position Sensor Upper Limit Not Reached Possible causes – Faulty intake manifold air control solenoid– Intake manifold air control solenoid harness is open or shorted– Intake manifold air control solenoid circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1030 Chevrolet Intake Manifold Air Control Valve Position Sensor Lower Limit Not Reached Possible causes – Faulty intake manifold air control solenoid– Intake manifold air control solenoid harness is open or shorted– Intake manifold air control solenoid circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1031 Chevrolet Intake Manifold Air Control Valve Position Sensor Specification Not Attained Possible causes – Faulty intake manifold air control solenoid– Intake manifold air control solenoid harness is open or shorted– Intake manifold air control solenoid circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1026 Chevrolet Intake Manifold Air Control Solenoid Short To Positive Possible causes – Faulty intake manifold air control solenoid– Intake manifold air control solenoid harness is open or shorted– Intake manifold air control solenoid circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1027 Chevrolet Intake Manifold Air Control Solenoid Short To Ground Possible causes – Faulty intake manifold air control solenoid– Intake manifold air control solenoid harness is open or shorted– Intake manifold air control solenoid circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1024 Chevrolet Fuel Pressure Control Valve Open Circuit Possible causes – Faulty fuel pressure control valve– Fuel pressure control valve harness is short to ground– Fuel pressure control valve circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1025 Chevrolet Fuel Pressure Control Valve Mechanical Malfunction Possible causes – Faulty fuel pressure control valve– Fuel pressure control valve harness is open or shorted– Fuel pressure control valve circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1020 Chevrolet Fuel Pressure Control Limit Exceeded Possible causes – Faulty Fuel Pressure Sensor– Fuel Pressure Sensor harness is open or shorted– Fuel Pressure Sensor circuit poor electrical connection– Faulty fuel pressure control valve– Fuel pump high pressure Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1021 Chevrolet Valve Pause System Stuck On Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1022 Chevrolet MIVEC Performance Problem Bank 2 Possible causes – Failed engine oil pressure switch– Failed engine oil control valve– Open or short circuit Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1023 Chevrolet Fuel Pressure Control Valve Short To Ground Possible causes – Faulty fuel pressure control valve– Fuel pressure control valve harness is short to ground– Fuel pressure control valve circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1016 Chevrolet Power Steering Circuit Hi Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1017 Chevrolet Valvetronic Eccentric Shaft Sensor Plausibility Possible causes – Faulty valvetronic eccentric shaft sensor– Valvetronic eccentric shaft sensor harness is open or shorted– Valvetronic eccentric shaft sensor circuit poor electrical connection– Missing reluctor on valvetronic eccentric shaft sensor What about the obd code? Valvetronic eccentric shaft guiding sensor solenoid loss bank 1 Symptoms –…

P1018 Chevrolet Intake Manifold Runner Bank 2 Lower Limit Not Reached Possible causes – Faulty Intake Manifold Runner Motor 2– Manifold Runner Motor 2 harness is open or shorted– Manifold Runner Motor 2 circuit poor electrical connection– Faulty Intake Manifold Flap 2 Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1019 Chevrolet Valvetronic Eccentric Shaft Sensor Power Supply Possible causes – Faulty valvetronic eccentric shaft sensor– Valvetronic eccentric shaft sensor harness is open or shorted– Valvetronic eccentric shaft sensor circuit poor electrical connection– Missing reluctor on valvetronic eccentric shaft sensor What about the obd code? Valvetronic eccentric shaft guiding sensor solenoid loss bank 1 Symptoms…

P1012 Chevrolet Exhaust Camshaft Position Actuator Park Position Bank 1 Possible causes – Engine oil level– Dirty engine oil– Faulty camshaft actuator– Blocked camshaft position actuator oil passages Tech description Before replacing any parts, check engine oil level and condition. Replaced engine oil and filter with factory recommend oil weight if necessary. Symptoms – Engine…

P1013 Chevrolet Intake Camshaft Position Actuator Park Position Bank 2 Possible causes – Engine oil level– Dirty engine oil– Faulty camshaft actuator– Blocked camshaft position actuator oil passages Tech description Before replacing any parts, check engine oil level and condition. Replaced engine oil and filter with factory recommend oil weight if necessary. Symptoms – Engine…