Common Symptoms
- Check engine light illuminated
- Rough idle or engine misfire on cylinder 2
- Poor fuel economy
- Reduced engine power or hesitation
- Black smoke from exhaust during acceleration
- Engine stumbling or running unevenly
Most Likely Root Causes
- Faulty fuel injector on cylinder 2
- Damaged or shorted injector wiring harness
- Corroded or loose injector connector
- Failed injector driver circuit in the engine control module
- Internal short circuit within the fuel injector
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Component Location
Cylinder 2 fuel injector is located on the engine cylinder head at the number 2 cylinder position, accessible from the intake side of the engine.
Manufacturer Notes
Some manufacturers have updated engine control module software to improve injector driver circuit diagnostics and fault detection sensitivity.
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