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DTC - Diagnostic Trouble Codes information

P0272

Powertrain Codes

P0272 - FORD - Cylinder 4 Injector Contribution/Balance Fault

Symptoms

- Engine Light ON (or Service Engine Soon Warning Light) - Engine Misfire - Engine Run Rough - Low MPG

Possible Causes

- Fuel injector 4 harness is open or shorted - Fuel injector 4 Circuit poor electrical connection - Plugged Fuel Injector 4 - Dirty Fuel Injector 4 - Faulty Fuel Injector 4

Tech Notes

Clogged or partially clogged fuel injector can cause this code. Start by performing an injector flush before replacing the injector.

Description

Code P0272 is triggered when the Engine Control Module (ECM) detects that the acceleration rate of the crankshaft for Cylinder 4 was less than a calibrated amount. During normal conditions the ECM turns the Fuel Injectors ON and OFF in the Fuel Injection System.