The P0267 code on your 2019 Buick Encore indicates a low voltage condition detected in the cylinder 3 fuel injector circuit. The Encore's turbocharged engine requires all cylinders operating properly for smooth performance.
Encore Engine Configuration
The 2019 Buick Encore uses a 1.4L turbocharged four-cylinder engine producing 138 horsepower. This compact powerplant uses port fuel injection and is transversely mounted. Cylinder 3 is the third cylinder from the timing belt end, located toward the firewall side of the engine bay.
Understanding Low Circuit
A low voltage condition indicates the ECM detects reduced voltage in the injector circuit, typically from a short to ground. This can occur from internal injector coil failure, damaged wiring touching the engine block or frame, or moisture-induced connector shorts. The injector may still operate erratically with a partial short.
Diagnostic Steps
Access the cylinder 3 injector connector on the firewall side of the engine. Disconnect and measure injector coil resistance—expect approximately 12 ohms for this engine. Test for unintended continuity between the circuit wires and ground. Inspect the wiring harness for chafing against the turbo heat shield or other components.
Repair Requirements
Shorted injectors need replacement—the compact engine allows reasonable access. For wiring shorts, locate the damaged section and repair properly. Given the turbo's proximity, use heat-resistant materials. Clear codes and verify repair success through drive cycle monitoring.