2014 Nissan 370Z Check Engine Light

We provide up-front diagnostic pricing at Larry H. Miller Nissan Mesa, and the fee is often credited toward the resulting repair.

Dealers do more than read a code—they confirm the actual failure with guided tests and provide a written estimate before any work begins. For your 2014 Nissan 370Z, our OEM-trained technicians use factory-level data to isolate faults accurately, helping you avoid unnecessary parts. You can schedule service online and check our current service specials before you visit Mesa.

• Factory scan tool access and technical service information
• Isolation testing to verify the root cause (beyond code reading)
• Clear, written estimate prior to any repair authorization

It means the engine control module stored an OBD-II trouble code identifying the affected system.

This warning can be minor (like a loose fuel cap) or indicate an emissions or drivability issue that needs prompt attention. The code points to the system, not a guaranteed failed part, so proper diagnosis prevents parts-swapping. Our Mesa team can read freeze-frame data, verify conditions, and confirm the fault on your 2014 Nissan 370Z. Book online to get an accurate read and plan next steps.

• EVAP leak (often from a loose or damaged gas cap)
• Oxygen/Air-Fuel sensor aging affecting fuel control
• Misfire detection that can risk catalytic converters if ignored

The most frequent causes are O2 sensor faults, EVAP leaks, MAF sensor issues, catalytic converter efficiency, and engine misfires.

On the 2014 Nissan 370Z 3.7L V6, intake airflow and emissions monitoring are sensitive to sensor health and vacuum integrity. A simple EVAP leak may be inexpensive, while misfires left unresolved can damage catalytic converters. Our Mesa service team isolates the true cause before any parts are replaced—saving time and avoiding repeat lights.

• Loose/damaged fuel cap causing small EVAP leaks
• Contaminated or failing MAF causing fuel trim errors
• Aging A/F or downstream O2 sensors impacting mixture control

A steady light means drive cautiously to service, but a flashing light means stop to prevent catalytic-converter damage from a severe misfire.

If the light is steady, check your gas cap and monitor performance while heading to our Mesa service center. If it’s flashing or the car runs rough, arrange a tow to protect the engine and emissions system. Prompt diagnosis on your 2014 Nissan 370Z prevents more costly repairs.

• Flashing light: stop driving and seek assistance
• Steady light: tighten gas cap and schedule soon
• Book a visit now via our online scheduler

Parts stores read basic codes, but our dealer technicians use factory-level scan data and pinpoint testing to find the actual cause, not just the symptom.

Codes can have multiple root causes; replacing parts based on a generic read often leads to repeat lights. In Mesa, our OEM-certified team reviews freeze-frame data, performs verification tests, and provides a written estimate before work begins. That means your 2014 Nissan 370Z gets fixed right the first time.

• Access to Nissan service information and guided diagnostics
• Confirmation testing to avoid unnecessary parts
• Clear estimate and options before any repair

No—resetting clears OBD-II readiness monitors, which typically causes an emissions test failure until monitors complete.

Arizona emissions checks require readiness monitors to be “ready” and no active malfunction indicator. Clearing the light erases stored data, so the system must relearn over a complete drive cycle; if the fault remains, the light will return. We can diagnose, repair, and verify monitors on your 2014 Nissan 370Z so you pass confidently—schedule service.

• Readiness monitors must complete naturally after repairs
• Pending issues will bring the light back on
• Professional diagnosis avoids repeated test failures

LHM Nissan Mesa serves the Phoenix East Valley and Greater Phoenix metro area—including Mesa, Tempe, Scottsdale, Chandler, Gilbert, and Phoenix—with factory-authorized diagnostics for your 2014 Nissan 370Z. Our certified Nissan Service Center uses advanced scan tools that see manufacturer data a generic OBD-II reader can’t, helping us verify faults instead of guessing at parts. Arizona’s temperature swings can aggravate EVAP leaks and sensor tolerances, so we check freeze-frame data and conditions to reproduce the issue accurately. Visit us at 2025 W Riverview Auto Dr, Mesa, AZ 85201 (just off the Loop 202 and Dobson Road), review our service specials, and schedule an appointment when it fits your day.

For your 2014 Nissan 370Z, we start with a complete OBD-II scan and review freeze-frame data to see what the computer saw when the fault set. Next, a visual and functional inspection targets likely causes (wiring, vacuum lines, connectors). We then perform isolation testing as needed to confirm the root cause—so you replace what failed, not what might have failed. Before any repair, we provide a written estimate and discuss options, timing, and parts availability. Ready to move forward? Use our online scheduler to pick a time, and check service specials for current offers.

Common OBD-II trouble codes drivers encounter on the 3.7L V6 include P0300 (random misfire), P0420 (catalyst system efficiency below threshold), P0171 (system too lean), P0456 (small EVAP leak), and P0101 (MAF range/performance). Some 2014 Nissan 370Z vehicles may also log air-fuel sensor performance codes that affect closed-loop fueling. Ignoring misfires can overheat and damage catalytic converters; delaying EVAP or sensor faults can lead to poor fuel economy and renewed warning lights. Addressing the root cause early helps protect emissions components and maintain performance. Bring your 2014 Nissan 370Z to Larry H. Miller Nissan Mesa in Mesa for an accurate diagnosis — schedule service.