2014 Chevrolet Impala Check Engine Light in Murray, UT

It means the OBD-II system detected a fault and stored a diagnostic trouble code (DTC) in the engine control module.

Your sedan’s engine computer logs a code and freeze-frame snapshot the moment it sees an emissions or powertrain abnormality. On the 2.5L inline-4 (195 hp) in a 2014 Chevrolet Impala, causes can range from a loose gas cap (EVAP) to an oxygen sensor or misfire. Our Murray team can retrieve the code, validate it with live data, and confirm the underlying cause—no guesswork. If the light is on, schedule service for a professional diagnosis.

• OBD-II codes identify the affected system (EVAP, O2 sensor, ignition, etc.).
• Freeze-frame data records RPM, load, and temperature at the fault moment.
• Dealer-grade testing prevents unnecessary parts replacement.

A steady light means drive cautiously to service; a flashing light means stop driving to avoid catalytic-converter damage from a severe misfire.

If the 2014 Chevrolet Impala runs normally and the light is steady, reduce load and head to our Murray service lane or schedule an appointment. If the light flashes, you may have raw-fuel misfire that can overheat and damage the catalytic converter. When in doubt—especially with rough running—towing protects your engine and emissions system.

• Check that the gas cap is secure after fuel stops.
• A flashing MIL often indicates active misfire—don’t continue driving.
• Use our service specials to plan your visit.

Common causes include oxygen sensor faults, EVAP leaks (often a loose gas cap), mass airflow (MAF) issues, catalytic converter efficiency, or ignition misfire.

These are typical on high-mileage sedans and can affect fuel economy and emissions on the 2.5L inline-4. Some faults are simple (seal the fuel cap), while others require electrical testing or smoke testing for EVAP leaks. Our Murray technicians use live data and pinpoint tests to separate a true component failure from wiring or vacuum issues.

• O2 sensor and catalytic efficiency faults impact emissions readiness.
• MAF contamination skews fuel trims and can trigger lean codes.
• Misfire left unchecked can overheat and damage the converter.

A free scan reads a generic code; dealer diagnostics use GM factory tools (GDS2) and service information to confirm the root cause.

Codes have multiple potential causes, and the correct fix requires testing—not guesses. Our Murray team accesses GM technical bulletins, performs guided circuit checks, and validates repairs with live data and drive cycles. You’ll receive a written estimate before any work, plus options based on your 2014 Chevrolet Impala’s condition.

• GM GDS2 access for proprietary data and module tests.
• Pinpoint diagnostics to verify sensors, wiring, and vacuum integrity.
• Clear, written estimate after testing—no parts swapping.

No—clearing the light resets OBD-II readiness monitors, which typically fails emissions until required drive cycles are completed.

Inspection stations check that the malfunction indicator lamp (MIL) is off and that readiness monitors show “ready.” A simple reset clears monitors and hides helpful diagnostic data. The better path is confirming the fault, repairing it, and driving the readiness cycle so your 2014 Chevrolet Impala is compliant. If you need help, schedule service.

• Readiness must be complete for most model-year 1996+ vehicles.
• Clearing codes also clears stored freeze-frame diagnostics.
• We verify monitor status before you head to an emissions lane.

Larry H. Miller Chevrolet Murray at 5500 S State St, Murray, UT 84107 performs GM-specific diagnostics for your 2014 Chevrolet Impala.

We’re convenient to Salt Lake City, South Jordan, West Jordan, Midvale, and Sandy. Our factory-trained team evaluates your 2.5L inline-4 with OEM scan data and targeted testing, then provides a written estimate. Book your visit with our schedule service tool and review service specials before you arrive.

• Easy online scheduling and morning drop-off.
• Diagnostic documentation you can keep.
• OEM-quality replacement parts when repairs are approved.

Welcome to Larry H. Miller Chevrolet Murray, your premier Chevrolet dealership serving the greater Salt Lake City area, including South Jordan, West Jordan, Midvale, and Sandy. For a 2014 Chevrolet Impala, accurate diagnosis starts with the right tools. Our technicians connect GM factory scan equipment to read DTCs, freeze-frame data, and live parameters, then confirm findings with isolation tests (smoke for EVAP, fuel-trim analysis, ignition checks). This dealer-level approach separates a failing sensor from wiring, vacuum, or mechanical causes, protecting your time and budget. If your light is flashing or you notice rough running, reduce load and plan a prompt visit.

You’ll leave with clear results and a written estimate tailored to your 2014 Chevrolet Impala. Find us at 5500 S State St, Murray, UT 84107. Use our schedule service tool to pick a time, and review current service specials before you arrive.

Our process focuses on facts, not guesses. First, we perform an initial OBD-II scan to capture codes and freeze-frame data from your 2014 Chevrolet Impala. Next, we verify symptoms with live data (fuel trims, O2 activity, MAF readings, misfire counters) and conduct a visual inspection. As needed, we run isolation tests—such as EVAP smoke testing, circuit integrity checks, or targeted component tests—to pinpoint the root cause on the 2.5L inline-4, front-wheel-drive powertrain.

After testing, you’ll receive a written estimate outlining confirmed faults and repair options. If additional steps are advisable (software updates, drive-cycle verification), we’ll explain why and what to expect. No repairs proceed without your approval. Ready to move forward? Book now with our schedule service tool and consider current service specials for added value.

While the exact DTCs vary, 2014 Chevrolet Impala owners often see categories like EVAP system leaks (loose gas cap or small leak), oxygen sensor circuit/performance, mass airflow (MAF) range/performance, catalytic converter efficiency, and random/single-cylinder misfires. Each of these affects how the engine meters air and fuel or manages emissions. Ignoring misfire- or fuel-trim-related codes can lead to raw fuel entering the exhaust, which overheats and damages the catalytic converter—an expensive component to replace.

Address EVAP and O2 concerns early to maintain fuel economy and pass readiness checks. MAF contamination and minor vacuum leaks can masquerade as sensor failures, so data-driven testing is essential before replacing parts. Bring your 2014 Chevrolet Impala to Larry H. Miller Chevrolet Murray in Murray for an accurate diagnosis — schedule service.