P1291 FORD Code Possible Causes
- Faulty fuel injector
- Fuel injector harness is open or shorted
- Poor electrical connection in the fuel injector circuit
How is the P1291 FORD Code Repair Performed?
Start by checking the “Possible Causes” listed above. Visually inspect the wiring harness and associated connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.
What are the Possible Symptoms of the P1291 FORD Code?
- Engine light on (or Service Engine Soon warning light)
What Does the P1291 FORD Code Mean?
The Powertrain Control Module (PCM) monitors the output of the fuel injection circuits and sets a Diagnostic Trouble Code (DTC) when it detects that the output is not within a calibrated limit. When diagnosing a fuel injector or fuel injector circuit issue, Bank 1 refers to cylinder numbers 1, 4, 6, and 7.