Powertrain, generic (extended)

P22E3 Cylinder 3 Alternative Fuel Injector Control Circuit High

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modePossible

P22E3 tells that the cylinder 3 gas injector circuit is held high. TransEco Energy's AFCM list names a short to power, MIL on for bi-fuel use, and Ford's 2014 code list also ties P22E3 to the MIL. With the line stuck at supply voltage the injector cannot be switched on, so cylinder 3 gets no gas and misfires lean. In GM's bi-fuel Silverado layout the ECM calculates the pulse widths while a separate fuel injector control module passes them to the gas injectors, so the fault can sit in the wiring between that module and the injector, in the injector itself, or in the module output. Gasoline operation remains normal. P22E2 is the low side and P0268 the high-side code of the gasoline injector.

Likely causes

Cylinder 3 control wire shorted to a 12 V feed
Shorted turns in the cylinder 3 gas injector
Faulty output of the injector control module

Symptoms

  • Malfunction indicator lamp on
  • Lean misfire on cylinder 3 in gas mode, often with P0303
  • Noticeable loss of power on gas

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

P22E1P22E2P22E4P22DFP0268P0303

References: http:, performanceparts.ford.com, static.nhtsa.gov.