Back to 2014 Cadillac ATS
Help

2014 CADILLAC ATS

2.0L Turbo I4•RWD•AUTOMATIC•gas•turbo
4 active safety recalls on this vehicle — view recalls
Founding sponsor spot is openYour name on every procedure for this vehicle, permanently.Sponsor — $99 →
Repairs0Labor566Torque4710Fluid7DTC955Battery0Maintenance0Recalls4
P0312high severityPowertrain

Cylinder 12 Misfire Detected

on 2014 Cadillac ATS 2.0L Turbo I4 · RWD

What this code means

Misfire detected in cylinder 12.

Symptoms

  • Check Engine Light
  • Rough idle

Common causes

  • Worn plug #12
  • Faulty coil
  • Faulty injector

Diagnostic steps

  1. Swap coil
  2. Inspect plug
  3. Test injector

Repair notes

Diagnose cylinder 12.

Other Powertrain codes on this vehicle

⚠ STILL BEHIND THE PAYWALL
The 2014 Cadillac ATS repair data is incomplete because no one has sponsored it yet. For $99, we generate the full step-by-step procedures, then fact-check them with a second AI pass and your expert review. Your name on every procedure, permanently.
The same data would cost $169/mo from Mitchell1 or $30/year from ALLDATAdiy — and you'd be renting access, not freeing it. Sponsor once, free forever.
Sponsor the Cadillac ATS — $99 →
Building an app?
Free API access to all this data — 50 requests/day, no card required.
Get an API key →
Run a shop?
Manage repairs, estimates, and customers with ShopBase — $249/mo, all features included.
Try ShopBase →