Back to 2009 Audi R8
Help
2009 AUDI R8
5.2L V10 (Gen 1, 525hp)•AWD•AUTOMATIC•gas•BUJ
Founding sponsor spot is openYour name on every procedure for this vehicle, permanently.Sponsor — $99 →
Repairs0Labor492Torque4246Fluid9DTC1087Battery1Maintenance0Recalls0
P1214high severityPowertrain

Cylinder 2 Fuel Injector Short to Positive

on 2009 Audi R8 5.2L V10 (Gen 1, 525hp) · AWD

What this code means

The ECU detected a short to positive voltage in the Cylinder 2 fuel injector circuit. The injector cannot be properly controlled, leading to a misfire or rich condition on Cylinder 2.

Symptoms

  • Check Engine Light
  • Misfire on Cylinder 2
  • Rough running
  • Rich exhaust
  • Reduced power

Common causes

  • Injector wiring shorted to power source
  • Faulty fuel injector Cylinder 2
  • Melted or damaged connector
  • Wiring harness chafing near heat source

Diagnostic steps

  1. Test injector resistance Cylinder 2
  2. Inspect wiring for shorts
  3. Check connector condition
  4. Swap injector to isolate fault
  5. Check for wiring routing near exhaust

Repair notes

Repair wiring short or replace the fuel injector on Cylinder 2.

🔌 Don't have a code reader?
Any of these will read and clear this code — pick by how deep you want to go.
As an Amazon Associate, OLP earns from qualifying purchases — how we link. This never changes the specs we publish.

Other Powertrain codes on this vehicle

🔌 Need this data in your app? It's all in the free API →
🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Lexus & Toyota Mechanic · 20+ years. Spot an error? Use the Help link above — a human reads every report.
Stuck on this repair? Take it to The Diag Desk — ask a master tech about this exact car → real human answer within 24h, never AI
Share:XRedditFBWhatsAppThreadsEmail
⚠ STILL BEHIND THE PAYWALL
The 2009 Audi R8 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 Audi R8 — $99 →
Building an app?
Free API access to all this data — 10 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 →