Chasing codes is only half the job.

Root-cause diagnostics for lasting fixes.

Modern Porsches can throw a CEL for dozens of reasons. At Cooper’s Garage, we don’t just clear codes — we diagnose the underlying issue and refresh the supporting systems. That’s how we keep performance cars running like they should, long after the light goes out.

Customer Concern

  • Check engine light staying on
  • Wanted a reliable, lasting fix
  • Needed a proper baseline for ongoing maintenance

Findings & Diagnosis

  • Fault codes indicated mixture and sensor faults
  • Inspection revealed tired ignition components and filters
  • Brake system overdue for service

Work Performed

  • Replaced ignition coils and spark plugs
  • Installed new filters and fluids
  • Performed brake service to factory spec
  • Cleared CEL after verifying system health

Result

  • Check engine light resolved with no return
  • Stronger, smoother engine performance
  • Andy’s 911 now baseline-serviced and ready for spirited drives

Check engine light gone. Porsche 911 Carrera back at full strength.

After proper diagnostics and a full baseline service, this Guards Red 997 is running clean and strong — no codes, no misfires, just pure Porsche performance the way it should be.

Guards Red 2009 Porsche 911 Carrera with owner outside Cooper’s.