2023 Nissan Murano Check Engine Light in Mesa, AZ

The check engine light means your engine or emission control system stored an OBD-II trouble code identifying a specific system fault.

On a 2023 Nissan Murano, the light can be triggered by anything from a loose gas cap to a sensor, misfire, or catalytic converter issue. The vehicle’s computer saves a code and freeze-frame data that help our technicians identify conditions present when the fault occurred. In Arizona’s heat and large temperature swings, EVAP and sensor-related alerts are common if seals or connectors age.

• OBD-II codes point to systems (e.g., EVAP, O2 sensor), not a guaranteed failed part
• Freeze-frame data records RPM, load, and temperature at the moment of the fault
• Proper diagnosis prevents replacing good parts and missing the real cause

Common causes include oxygen sensor faults, EVAP system leaks (loose gas cap), mass air flow issues, catalytic converter efficiency codes, and ignition misfires.

These categories cover the majority of check engine concerns we see on late-model Nissan SUVs in the Phoenix East Valley. Heat, dust, and stop-and-go driving can accelerate wear on sensors and ignition components. A prompt diagnostic prevents minor air-fuel or leak problems from escalating into catalytic converter damage.

• O2/AFR sensor or heater circuit faults can affect fuel economy and emissions
• EVAP leaks (cap, purge/vent valves) often occur after refueling or hot/cold swings
• Misfires from coils/plugs can overheat and damage the catalytic converter

A steady light means drive cautiously to service; a flashing light indicates a severe misfire—stop driving and seek towing.

In Mesa’s urban traffic and high temperatures, continuing to drive with a flashing light risks raw fuel entering the exhaust, which can quickly damage the catalytic converter. If the light is steady and the Murano runs normally, tighten the gas cap, avoid heavy loads, and schedule a diagnostic as soon as possible. We can check current service specials and get you in quickly.

• Flashing = potential misfire that can melt the catalytic converter
• Steady = reduced performance or emissions fault; minimize driving
• Use our schedule service tool for the next available appointment

Parts stores read the code; dealer technicians perform full diagnosis with Nissan factory scan tools, guided tests, and confirmation procedures.

A code like P0442 (small EVAP leak) has multiple causes—cap, lines, valves, or canister. Our OEM equipment retrieves Nissan-specific data, bi-directional tests components, and verifies the fix before you leave. You’ll receive a written estimate after root-cause isolation, helping you avoid guessing and repeat visits.

• Factory scan data and service info specific to your 2023 Nissan Murano
• Isolation testing to confirm the failed component before repairs
• Written findings and estimate; check our service specials

No—clearing the light resets readiness monitors, and Arizona emissions testing requires monitors to be “ready” with no active faults.

After a reset, your 2023 Nissan Murano must complete specific drive cycles before monitors set to ready. If the underlying issue remains, the light will return and the vehicle may fail the test. We can diagnose the cause, perform the repair, and advise on the drive cycle needed before you test.

• Readiness monitors verify EVAP, O2, catalyst, and other system checks
• Drive cycles require varied speeds, engine temps, and conditions
• Book a schedule appointment to resolve the root cause

A flashing light signals an active misfire that can overheat the catalytic converter—park safely and arrange towing.

This protects your 2023 Nissan Murano from costly exhaust damage and potential drivability issues on Phoenix-area roads. Once here, we’ll retrieve codes and freeze-frame data, perform coil/plug and fuel checks, and confirm the repair before return. If the light is steady, you can likely drive in, but avoid hard acceleration and high loads.

• Misfire diagnosis includes ignition, fuel, and compression checks
• Prolonged misfires can destroy the catalyst, increasing repair costs
• Use our schedule service tool for next steps

Serving the Phoenix East Valley and Greater Phoenix metro area—including Mesa, Tempe, Scottsdale, Chandler, Gilbert, and Phoenix—Larry H. Miller Nissan Mesa uses Nissan-specific diagnostic equipment to accurately identify why your 2023 Nissan Murano check engine light is on. Generic code readers only provide a starting point; our factory scan tools access proprietary data, run active tests, and verify fixes. Arizona’s temperature swings and dry climate can surface EVAP leaks, sensor faults, or intermittent connections. Early diagnosis prevents small issues from becoming expensive repairs. Find us at 2025 W Riverview Auto Dr, Mesa, AZ 85201, just off Loop 202 and Dobson Road. Ready to move forward? Use our online schedule service to book a diagnostic or view current service specials before you arrive.

Your visit starts with a professional OBD-II scan and retrieval of stored and pending codes on your 2023 Nissan Murano. Our technicians review freeze-frame data to understand the vehicle conditions at the time of the fault. Next, we perform targeted isolation tests—such as smoke testing the EVAP system, checking sensor circuits, or coil/plug testing for misfires—to confirm the root cause, not just the symptom. You’ll receive a written estimate before any repair work proceeds. Warranty-related diagnosis and repairs are handled in accordance with Nissan and applicable plan terms. If you’re ready to proceed, use our schedule service tool, and don’t forget to check service specials for potential savings on today’s visit.

On a 2023 Nissan Murano, frequently seen codes include EVAP small leak (often a loose or failing gas cap or vent/purge valve), oxygen/air-fuel sensor performance or heater faults, mass air flow correlation issues, catalyst efficiency below threshold, and ignition misfires. Each code points to a system that needs confirmation testing to identify the failed component. Driving with misfire codes can overheat and damage the catalytic converter, significantly increasing repair costs. Ignoring EVAP or O2 sensor codes can reduce fuel economy and may lead to emissions test failures. Bring your 2023 Nissan Murano to Larry H. Miller Nissan Mesa in Mesa for an accurate diagnosis — schedule service.