P1023 BMW Valvetronic Adjustment Range

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 When is the obd code mean? VVT self learning function faulty adjustment range bank 1 Symptoms – Engine Light ON (or Service Engine…