P2300high severityPowertrain
Ignition Coil A Secondary Circuit Insufficient Ionization
on 2017 Chevrolet Impala 2.5L I4 Ecotec · AWD
What this code means
The ignition system detects insufficient combustion ionization current on cylinder 1 coil.
Symptoms
- Misfire on cylinder 1
- Check engine light
- Rough running
Common causes
- Worn spark plug
- Failed ignition coil
- High resistance plug wire
- Compression issue
Diagnostic steps
- Check spark plug condition
- Measure coil secondary resistance
- Compression test
- Inspect plug wire
Repair notes
Replace spark plug first. Replace coil if fault persists.
Other Powertrain codes on this vehicle
P0001
Fuel Volume Regulator Control Circuit/Open
P0001
Fuel Volume Regulator Control Circuit/Open
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0003
Fuel Volume Regulator Control Circuit Low
P0003
Fuel Volume Regulator Control Circuit Low
P0004
Fuel Volume Regulator Control Circuit High
P0004
Fuel Volume Regulator Control Circuit High
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1