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.
High severity. Can I keep driving?If you smell gas, do not keep driving or start the engine: move away and call for assistance. With no smell, drive moderately to an authorized shop.
Cylinder 3 is numbered according to the manufacturer: check your engine's manual before working on it.
Symptoms
- Malfunction indicator lamp on
- Cylinder 3 runs rich or misfires in gas mode
- Smell of unburnt gas at the exhaust
Most 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
What to check, in order
Start with the simplest. You can tick off each step.
Good to know
- Repair difficulty: medium
- It can trigger limp mode.
- It affects emissions.
What each character of P22E2 means
- P: Powertrain: engine and transmission
- 2: Generic code: same on every make
- 2: Fuel injection
- E2: Specific fault in that system
Frequently asked questions
Can I keep driving with code P22E2?
If you smell gas, do not keep driving or start the engine: move away and call for assistance. With no smell, drive moderately to an authorized shop.
What causes code P22E2?
The most common causes are: 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.
Related codes
- P22E1Cylinder 3 Alternative Fuel Injector Control Circuit/Open
- P22E3Cylinder 3 Alternative Fuel Injector Control Circuit High
- P22E4Cylinder 3 Alternative Fuel Injector Control Circuit Range/Performance
- P22DECylinder 2 Alternative Fuel Injector Control Circuit Low
- P0267Cylinder 3 Injector A Circuit Low
- P0303Cylinder 3 Misfire Detected
Sources
- transecoenergy.com: DTC List
- performanceparts.ford.com: 2014 BOSS 302S OBDII Codes
- law.cornell.edu: 13 CCR 1968.2
Values and procedures vary by manufacturer. If it affects brakes, steering, fuel or high voltage, see a professional. Updated: 2026-11-04. How we build these pages.