Powertrain, generic (extended)

P22E1 Cylinder 3 Alternative Fuel Injector Control Circuit/Open

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modePossible

P22E1 marks an open control circuit at the cylinder 3 gas injector. Circuit continuity checks of this kind run all the time: California's OBD rule defines continuous monitoring as always enabled with at least two samples per second, so a break is caught within moments once the gas system is in use. No maker documents P22E1 openly. TransEco's AFCM list and Ford's 2014 code list give cylinder 3 only the Low/High codes P22E2 and P22E3, and TransEco counts an open line as Low. On GM's bi-fuel pickups the gas injectors sit on separate rails with hoses leading to nozzles at each intake runner, and their wiring runs along those rails; a pulled connector after work in that area is a common reason. Bi-fuel cars carry on with gasoline.

Likely causes

Cylinder 3 injector connector left off or not latched after service
Open coil in the cylinder 3 gas injector
Wire broken where the harness runs along the gas rail

Symptoms

  • Malfunction indicator lamp on
  • Gas mode switches off soon after changeover
  • Cylinder 3 misfire on dedicated gas engines

Repair estimate

DifficultyMediumWorkshop job
Parts and labour€40–400
Time0.5–2.5 h

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

Parts involved

alternative fuel injector

Related codes

P22E2P22E3P22E4P22DDP0203P0303

References: law.cornell.edu, static.nhtsa.gov, http:.