P0271 Acura Cylinder 4 Injector Circuit High
Possible causes
– Dirty Fuel Injector 4
– Faulty Fuel Injector 4
– Plugged Fuel Injector 4
– Fuel injector 4 harness is open or shorted
– Fuel injector 4 circuit poor electrical connection
– Faulty Fuel Injector 4
– Plugged Fuel Injector 4
– Fuel injector 4 harness is open or shorted
– Fuel injector 4 circuit poor electrical connection
Tech description
Clogged or partially clogged fuel injector can cause this code. Start by performing an injector flush before replacing the injector.
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
– Engine Misfire
– Engine Run Rough
– Low MPG
– Engine Misfire
– Engine Run Rough
– Low MPG
P0271 Acura Description
Code P0271 Acura is triggered when the Engine Control Module (ECM) detects a high voltage in the Fuel Injector 4 Circuit. During normal conditions the ECM turns the Fuel Injectors ON and OFF in the Fuel Injection System.
Acura Vehicle:
Acura ILX, Acura MDX, Acura RDX, Acura RLX, Acura TL, Acura TSX, Acura ZDX, Acura CSX, Acura EL, Acura Integra, Acura RSX, Acura Legend, Acura Vigor, Acura CL, Acura SLX, Acura NSX, Acura RL, Acura ZDX