P22E5 code meaning
Cylinder 4 Alternative Fuel Injector Control Circuit/Open
Powertrain system Generic code P22xx codes Check engine light
What P22E5 means
P22E5 is the open-circuit code for the cylinder 4 gas injector; on four-cylinder gas engines it is the last injector of the set. The driver sees no current when it switches the injector on. No maker documents P22E5 in public sources: TransEco and Ford's 2014 list stop at the cylinder 4 Low/High codes P22E6 and P22E7, and TransEco files an open line under Low. Ford's 2003 bi-fuel CNG trucks show a typical layout where gas enters through sleeves in the gasoline injector seats, with the gas injectors driven by a separate module, so connectors sit close to hot engine parts. Expect a switch back to gasoline on bi-fuel cars and a dead cylinder 4 on dedicated gas engines. P0204 is the gasoline counterpart.
P22E5 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 P22E5
- Malfunction indicator lamp on
- Gas mode unavailable, car runs on gasoline only
- Cylinder 4 dead on a dedicated gas engine
Common causes of P22E5
- Most likelyOpen coil in the cylinder 4 gas injector
- PossibleHeat-damaged or brittle connector near the exhaust side
- Less likelyBroken wire in the cylinder 4 injector circuit
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 P22E5 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). |
| E5 | The exact fault in that area. |
What to do next
- Note P22E5 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 P22E5
What does P22E5 mean?
P22E5 means "Cylinder 4 Alternative Fuel Injector Control Circuit/Open". P22E5 is the open-circuit code for the cylinder 4 gas injector; on four-cylinder gas engines it is the last injector of the set. It is a generic code, so it means the same on every make.
Is it safe to drive with P22E5?
Drive gently and only to a workshop. With P22E5 the car can go into limp mode (reduced power) to protect itself.
Will P22E5 fail an emissions test?
Yes, it can. P22E5 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 P22E5 to fix?
Difficulty: medium. A typical repair takes 0.5 to 2.5 hours of work. This is a job for a workshop.
Will P22E5 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.