What does code P0271 mean?
High signal detected in injector circuit for cylinder 4
OBD-II Code
P0271 — Cylinder 4 Injector Circuit High
High signal detected in injector circuit for cylinder 4
Common symptoms
- Rich mixture
- increased fuel consumption
Possible causes
- Short circuit
- injector stuck open
Initial recommendation
Measure injector resistance and inspect harness.
Safety notice
This information is for guidance only and does not replace a physical vehicle inspection or diagnosis by a qualified mechanic. If the vehicle has severe power loss, smoke, a fuel odor, overheating, brake or steering problems, or any unsafe behavior, avoid driving it and seek professional inspection.
Analyze this code with MecaOBD
Use the app to combine code P0271 with your vehicle's actual symptoms for more complete diagnostic guidance.
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