Powertrain, generic (extended)

P22EA Cylinder 5 Alternative Fuel Injector Control Circuit Low

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modePossible

P22EA stands for a low voltage on the cylinder 5 gas injector control wire, a code limited to engines with at least five cylinders. TransEco Energy's AFCM table points to a grounded wire or an open line, lights the MIL in bi-fuel use and applies the gasoline injector fault response; Ford's 2014 code list, written for V8 engines among others, keeps P22EA as a MIL code. A control wire resting on ground can energize the injector without pause, so cylinder 5 may run far too rich and its spark plug may foul; with an open line it misses gas instead. Inspect the wire along the rail of the affected bank first. P22EB is the high side, P22E9 the plain open circuit, and the gasoline injector reports P0273.

Likely causes

Cylinder 5 control wire shorted to ground along the gas rail
Interrupted wire or terminal, flagged as Low by some modules
Shorted output stage in the gas control module

Symptoms

  • Malfunction indicator lamp on
  • Cylinder 5 runs rich or misfires in gas mode
  • Fouled spark plug on cylinder 5

Repair estimate

DifficultyMediumWorkshop job
Parts and labour€50–450
Time0.5–3 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

alternative fuel injector

Related codes

P22E9P22EBP22ECP22E6P0273P0305

References: http:, performanceparts.ford.com, law.cornell.edu.