P22E1 code meaning
Cylinder 3 Alternative Fuel Injector Control Circuit/Open
Powertrain system Generic code P22xx codes Check engine light
What P22E1 means
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.
P22E1 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyMedium
- Typical labor0.5 to 2.5 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P22E1
- Malfunction indicator lamp on
- Gas mode switches off soon after changeover
- Cylinder 3 misfire on dedicated gas engines
Common causes of P22E1
- Most likelyCylinder 3 injector connector left off or not latched after service
- PossibleOpen coil in the cylinder 3 gas injector
- Less likelyWire broken where the harness runs along the gas rail
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Alternative fuel injector
What each part of P22E1 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| 2 | Area: fuel and air metering (injector circuit). |
| E1 | The exact fault in that area. |
What to do next
- Note P22E1 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P22E1
What does P22E1 mean?
P22E1 means "Cylinder 3 Alternative Fuel Injector Control Circuit/Open". P22E1 marks an open control circuit at the cylinder 3 gas injector. It is a generic code, so it means the same on every make.
Is it safe to drive with P22E1?
Drive gently and only to a workshop. With P22E1 the car can go into limp mode (reduced power) to protect itself.
Will P22E1 fail an emissions test?
Yes, it can. P22E1 is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P22E1 to fix?
Difficulty: medium. A typical repair takes 0.5 to 2.5 hours of work. This is a job for a workshop.
Will P22E1 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.