P0011Średni
Fazy rozrządu wałka dolotowego bank 1 — nadmiernie zaawansowane
Układ napędowy
Sprawdź szczegóły →P1020
WysokiCode P1020 is a manufacturer-specific code, indicating problems with the fuel system, variable valve timing, or the Valvetronic eccentric shaft sensor — interpretation depends on the vehicle make.
OBD-II (EN): Manufacturer Specific P1020 Fuel System or Valvetronic Eccentric Shaft Sensor Fault
Code P1020 is a manufacturer code that can indicate various faults depending on the vehicle make — most often related to the Valvetronic sensor power supply (BMW/Mini), fuel pressure regulation (Audi/VW), or the variable valve timing system. Symptoms such as engine jerking, limited power, or limp mode require thorough diagnosis using a specialist scanner. Due to the complexity of the systems this code can affect, a visit to an authorized service center or a workshop with appropriate diagnostic software is recommended.
Symptoms
Check Engine Light (MIL) on Engine runs rough or jerks Reduced engine power Activation of Limp Mode Problems with acceleration Unstable idle speed
Possible causes
BMW/Mini: High voltage in the Valvetronic eccentric shaft sensor power circuit BMW/Mini: Faulty eccentric shaft sensor or its wiring BMW/Mini: Overload of the Valvetronic control motor Audi/VW: Fuel pressure regulation range exceeded Audi/VW: Faulty fuel pressure regulator valve Audi/VW: Clogged fuel pump pre-filter Audi/VW: Faulty fuel pressure sensor Acura/Honda: Valve Pause System stuck in the off position Mitsubishi: MIVEC system performance problem (Bank 1)
Affected systems
Układ paliwowyValvetronic (BMW/Mini)Układ zmiennego sterowania zaworami (VVT/VVL)Czujniki silnikaSystem zarządzania silnikiem (ECM/DME)
Related codes
P0012Średni
Pozycja wału rozrządu A — nadmiernie opóźniona (bank 1)
Układ napędowy
Sprawdź szczegóły →Code P1020 appears in these brands
Go to messages and symptoms for your brand — there we analyze this code together with other typical alerts.
Does code P1020 require professional diagnostics?
The code alone is not enough. To find the cause, you need to read live data, check freeze frame conditions, and compare with vehicle behavior. Book a diagnostic session.