P22F3 — Cylinder 7 alternative-fuel injector control circuit — high electrical level

P22F3 concerns cylinder 7 alternative-fuel injector control circuit. The monitor reports an electrical level above its expected range. The high finding is electrical and specific to cylinder 7. It does not establish that too much alternative fuel is being injected.

Affected system: Alternative-fuel supply and injection

Symptoms

• Warning light may illuminate
• Related system function may be impaired
• Vehicle-specific symptoms vary

Possible causes

• Fuel supply or pressure issue, restricted injector, actuator fault, connector or wiring damage
• Related wiring, connector, power or ground fault
• Vehicle-specific mechanical or control issue

What to check

• Record stored and pending codes and freeze-frame data
• Check fuel supply and pressure readings, electrical supply and ground, and the relevant injector or regulator circuit before replacing parts.
• Confirm measured values against the vehicle service information
• Retest under the conditions that set the code
• Check fuel supply and pressure readings, electrical supply and ground, and the relevant injector or regulator circuit before replacing parts.
• Repair the verified cause and confirm the code does not return

Also written as: P22F3-00, P22F300 (some scan tools add the fault-type byte, e.g. -00).