P1180 HYUNDAI Possible Causes
- Faulty Fuel Pressure Regulator (FPR)
- Fuel Pressure Regulator (FPR) harness is open or shorted
- Poor electrical connection in Fuel Pressure Regulator (FPR) circuit
- Faulty fuel injector
- Faulty Engine Control Module (ECM)
How to Fix Code P1180 HYUNDAI?
Start by checking the “Possible Causes” listed above. Visually inspect the corresponding wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.
Possible Symptoms
- Engine light on (or engine warning light soon)
P1180 HYUNDAI Meaning
The Fuel Pressure Regulator (FPR) regulates the correct pressure in the rail according to the engine, the load, and maintains it at that level. If the rail pressure is excessive, the pressure regulating valve opens and some fuel returns from the rail to the fuel tank via a manifold line. If the rail pressure is too low, the pressure regulating valve closes and shuts off the high-pressure stage from the low-pressure stage. If the fuel pressure regulator fails, engine symptoms will occur such as stalling and inability to start. The Diagnostic Trouble Code (DTC) will be set if the fuel supply rail pressure is shorted to the battery line or an open circuit for two drive cycles, or if the engine speed is not below 500 rpm within 1.5 seconds after ignition switch off, during drive cycles.