Diagnostic trouble code P0273 on Audi vehicles — what it means, the common
causes, and how to confirm the real fault before replacing parts.
What does P0273 mean?
P0273 indicates: Cylinder 5 Injector Circuit Low.
This relates to the Fuel & air metering system.
Common causes of P0273
faulty injector detected by fault recognition system and no longer operated
Parts often involved in P0273
injector (N83 for cylinder 5)
Don't replace parts until the root cause is confirmed — many of these codes are caused by wiring, a connector or an upstream fault, not the part itself.
Get the confirmed root cause for P0273 — on YOUR vehicle
A code is a symptom, not a diagnosis. AutoDX Pro cross-checks several
independent assessments, pinpoints the actual root cause, gives you the
exact tests to confirm it, and shows the parts — only after the cause is
confirmed. Reads your scan-tool photo and decodes your VIN with open
recalls.
P0273 is a diagnostic trouble code: Cylinder 5 Injector Circuit Low.
What are the common causes of P0273 on an Audi?
Common causes include: faulty injector detected by fault recognition system and no longer operated. The exact cause depends on the vehicle — confirm it before replacing parts.
Can I keep driving an Audi with P0273?
It depends on the fault and your symptoms. Some causes are minor, others can damage components or affect safety. Get the root cause confirmed before deciding.
How do I fix P0273 on an Audi?
Confirm the actual root cause with targeted tests first, then replace only the part that's at fault. AutoDX Pro gives you the root cause, the exact tests, and the parts for P0273 on your specific Audi.