P0201 BUICK – Injector 1 Control Circuit

P0201 BUICK Possible Symptoms

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

P0201 BUICK Possible Causes

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

P0201 BUICK Description

The Powertrain Control Module (PCM) controls the fuel injectors by using an ignition feed driver and ground circuit within the PCM. The driver has the ability to detect an electrical malfunction in the ignition feed or ground circuit.