Powertrain, generic (extended)

P22E2 Cylinder 3 Alternative Fuel Injector Control Circuit Low

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modePossible

P22E2 is logged when the control circuit of the cylinder 3 gas injector reads low. In TransEco Energy's AFCM table the cause column says shorted to ground or open, the MIL comes on in bi-fuel systems and the reaction copies that for a gasoline injector fault. Ford's 2014 code list lists P22E2 as a MIL code. Because a grounded control wire can leave the injector energized, cylinder 3 may be flooded with gas; the catalyst then gets unburnt fuel, and prolonged driving in gas mode is a bad idea. With a broken wire the cylinder is simply starved. Typical spots are chafe points against brackets or the intake manifold. P22E3 is the high side and P22E1 the pure open-circuit code; the gasoline injector uses P0267.

Likely causes

Cylinder 3 control wire rubbed through against a bracket or the manifold
Broken wire or terminal in the cylinder 3 injector circuit
Shorted driver output in the gas control module

Symptoms

  • Malfunction indicator lamp on
  • Cylinder 3 runs rich or misfires in gas mode
  • Smell of unburnt gas at the exhaust

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

P22E1P22E3P22E4P22DEP0267P0303

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