P0201

Documented for: 2.0L gasoline; 2.5L/3.0L gasoline · System(s): EMS EOBD, EMS OBD II · Factory MIL flag: 2 · Default action: ECM Default: –Bank 1 closed loop fuel metering inhibited –Bank 1 adaptive fuel metering inhibited –Bank 1 catalyst warm up ignition retard inhibited –Canister purge inhibited –Maxi…

Common causes

• Injector disconnected Injector harness wiring: open circuit
• short circuit Injector failure
• Injector Circuit/Open - Cylinder 1

Quick checks

• Confirm freeze-frame and conditions when the code set
• Inspect connectors, grounds, and harness for the circuit named in the code
• Compare live sensor values vs expected (unplugged/biased sensors are common)
• Swap coil/plug to another cylinder if misfire is cylinder-specific

Typical fixes

• Inspect wiring to injector 1
• replace injector