P2300
Ignition Coil A Secondary Circuit Insufficient Ionization
1997-2000 BMW 528i E39 2.8L I6 🇬🇧
High SeverityPowertrain
Description
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.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P2300 on Other Vehicles
Common Questions
What does code P2300 mean on a 1997-2000 BMW 528i E39?
P2300 stands for "Ignition Coil A Secondary Circuit Insufficient Ionization". The ignition system detects insufficient combustion ionization current on cylinder 1 coil.
What are the symptoms of P2300 on a BMW 528i E39?
Common symptoms of P2300 include: Misfire on cylinder 1, Check engine light, Rough running.
What causes P2300 on a 1997-2000 BMW 528i E39?
Common causes of P2300 include: Worn spark plug, Failed ignition coil, High resistance plug wire, Compression issue.