OBD Code P0291

Cylinder 11 Injector Circuit Low

What’s mean?

OBD2 Code P0291 Definition:
Code P0291 is triggered when the Power Train Control Module (PCM) detects a low voltage in the Fuel Injector #11 Circuit. During normal conditions the PCM turns the Fuel Injectors ON and OFF in the Fuel Injection System.

Symptoms

Possible sumptoms of P0291
– Engine Light ON (or Service Engine Soon Warning Light) – Engine Misfire – Engine Run Rough – Low MPG

Possible Causes

Possible causes of P0291
– Fuel Injector #11 – Faulty or Corroded Fuel Injector #11 Connector – Plugged #11 Fuel Injector – Dirty #11 Fuel Injector

Possible Solutions

– Clean Fuel Injector #11 Connector – Clean Fuel Injector #11 – Replaced Fuel Injector