P0190Wysoki
Czujnik ciśnienia w szynie paliwowej — usterka obwodu
Układ napędowy
Sprawdź szczegóły →P2940
WysokiFuel Pump Control System — MIL Activation Request. The fuel pump control module has detected an abnormality and requested the warning light to turn on.
OBD-II (EN): Fuel Pump Control Circuit MIL Request
Code P2940 means the fuel pump control module (FPCM) has detected an abnormality and requested the MIL light to turn on. The cause could be a faulty fuel pump itself, a failed FPCM module, or a problem in the electrical circuit. Due to the possibility of sudden engine shutdown, we recommend professional diagnosis as soon as possible.
Symptoms
Check Engine Light (MIL) on, difficulty starting the engine or no start, irregular engine operation (jerking, rpm fluctuations), possible sudden engine shutdown while driving, reduced power and vehicle dynamics, increased fuel consumption.
Possible causes
• Faulty or failed fuel pump control module (FPCM) • Worn or defective fuel pump (insufficient fuel pressure) • Open or short circuit in the electrical circuit between FPCM and ECM/PCM • Damaged or corroded connectors and wiring harnesses supplying the pump • Faulty fuel pump relay or fuse
Affected systems
Układ paliwowyModuł sterujący pompą paliwa (FPCM)Pompa paliwaUkład sterowania silnikiem (ECM/PCM)Magistrala CAN
Related codes
Does code P2940 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.