Quick checks
- Confirm battery voltage before chasing more complex faults.
- Listen for whether the misfire is hot-only, cold-only, or constant.
- Check service history for overdue spark plugs or coil packs.
- Note whether the car has mainly done short trips recently.
Likely causes
Ageing coil packs or spark plugs
Likelihood: Most likely on older petrol Astons
Ignition parts often age out on time before they do on mileage.
Low battery voltage or poor charging support
Likelihood: Common on lightly used cars
Low voltage can exaggerate running quality and module behaviour.
Vacuum, air, or induction leaks
Likelihood: Fairly common on older or turbocharged cars
Ageing hoses and disturbed intake parts can upset fuelling.
Sensor fault or fuelling issue
Likelihood: Less common but important if ignition parts are current
When a basic service does not fix the issue, proper diagnosis matters.
Next steps
- Do not keep clearing the warning without checking fault codes and system voltage.
- If ignition service items are overdue, bring them fully up to date before guessing at rare faults.
- Escalate to a specialist if the misfire remains after verified battery and ignition basics.
Frequently asked questions
Can I keep driving an Aston Martin with a light misfire?
Only gently and only long enough to confirm whether the warning is stable. A flashing light or strong misfire means stop.