Possible causes

– Faulty fuel injector 1
– Fuel Injector 1 harness is open or shorted
– Fuel injector 1 circuit poor electrical connection

When is the code detected?

The P0201 is set if the Engine Control Module (ECM) is detects a low or high voltage drop or resistance at the injector 1.

Symptoms

– Engine Light ON (or Service Engine Soon Warning Light)
– Lack/Loss of Power
– The engine may be harder to start
– Engine hesitation

P0201 Description

Engine Control Module (ECM) checks the injectors circuit resistance and monitors the voltage drop during normal operation. The ECM will trigger the P0201 code when the resistance or voltage drop at the injector 1 is out of specifications.

P0201 Information for specific makes

P0201 LEXUS
P0201 VOLKSWAGEN
P0201 JAGUAR
P0201 GMC
P0201 PONTIAC
P0201 CADILLAC
P0201 CHEVROLET
P0201 BUICK
P0201 SATURN
P0201 BMW
P0201 CHRYSLER
P0201 KIA
P0201 ISUZU
P0201 HYUNDAI
P0201 MAZDA
P0201 LEXUS
P0201 NISSAN
P0201 MITSUBISHI
P0201 FORD
P0201 DODGE
P0201 JEEP