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

Tech notes

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

P0270 Description

Code P0270 is triggered when the Engine Control Module (ECM) detects a low voltage in the Fuel Injector 4 Circuit. During normal conditions the ECM turns the Fuel Injectors ON and OFF in the Fuel Injection System.

P0270 Information for specific makes

P0270 BMW
P0270 JEEP
P0270 DODGE
P0270 CHRYSLER
P0270 FORD
P0270 HYUNDAI
P0270 ISUZU
P0270 KIA
P0270 MAZDA
P0270 AUDI
P0270 VOLKSWAGEN