2013 Dodge Challenger Check Engine Light in Millbury, MA

It means the OBD-II system stored a Diagnostic Trouble Code (DTC) indicating a fault in an emissions, fuel, ignition, or engine-control system.

Your car’s computer detected an out-of-range sensor reading or a component fault and saved data (including freeze-frame) to guide diagnosis. On a 5.7L V8, causes range from a loose gas cap to a sensor, injector, or ignition issue. Visit Herb Chambers Chrysler Dodge Jeep RAM FIAT of Millbury in Millbury for a precise diagnostic and written estimate. You can schedule an appointment online.

• OBD-II DTC pinpoints the affected system, not the exact failed part.
• Loose or worn gas caps commonly trigger EVAP codes after refueling.
• Factory scan tools read proprietary data your generic reader may miss.

Typical causes include oxygen sensor faults, EVAP leaks (small/very small), mass-airflow/intake issues, catalytic converter efficiency codes (P0420), and cylinder misfires (P0300–P0308).

Temperature swings in Central Massachusetts can aggravate EVAP leaks, while age and mileage can affect O2 sensors and ignition parts. A misfire on a V8 can overheat the catalytic converters if ignored. For accurate root-cause testing, book a visit with our Millbury team; check our service specials and schedule service.

• Rule out a loose fuel cap; retighten until it clicks.
• Misfires under load point to plugs/coils or fueling issues.
• Recurring EVAP small-leak codes often need smoke testing.

A steady light means drive cautiously to service, but a flashing light signals an active misfire—stop driving to avoid catalytic converter damage.

Reduce speed and load if the light is steady and avoid high RPM; schedule an inspection soon to protect the engine and emissions system. The 5.7L V8 can run roughly during a misfire and may overheat the cats if you continue driving. Our Millbury Service Center can inspect the code and advise next steps.

• Flashing CEL = possible raw fuel to catalysts; risk of costly damage.
• If safe, head directly to our shop or schedule an appointment.
• Note symptoms (rough idle, loss of power) to share with your advisor.

Parts stores offer a free generic OBD-II code read, while our dealer performs full diagnostics with Mopar factory wiTECH tools, isolation testing, and OEM-trained technicians.

A code points to a system (for example, EVAP leak) but not the exact cause; professional testing prevents guesswork and parts-swapping. We review freeze-frame data, verify faults, and supply a written estimate before repairs. Serving Worcester, Auburn, and Millbury, we provide up-front findings and documentation. See service specials and schedule service.

• Factory scan access to proprietary modules and live data.
• Pinpoint tests (smoke, pressure, circuit) to confirm root cause.
• Repair plan with OEM parts to restore designed performance.

No—clearing codes resets OBD-II readiness monitors, and Massachusetts inspections fail vehicles with unset monitors even if the light is off.

After clearing, your car must complete specific drive cycles before monitors show “ready.” If an underlying fault remains, the light will return and the vehicle may fail inspection. Our Millbury technicians can verify monitor status and fix the root cause so your inspection goes smoothly. Use our online tool to schedule service.

• Readiness = system self-tests completed and passed.
• Drive cycles vary by engine and conditions; avoid last-minute resets.
• We can pre-check readiness prior to your state inspection.

It indicates a severe, active misfire that can overheat and damage the catalytic converters; safely stop and arrange professional diagnosis.

Continuing to drive a misfiring 5.7L V8 can quickly escalate repair costs. If the light flashes, reduce load and pull over when safe, then contact our Service Center for next steps. For non-flashing lights, drive gently to our facility at 2 Latti Farm Road (off Route 20), Millbury, MA 01527, or schedule an appointment.

• Misfires may stem from spark plugs, coils, injectors, or compression.
• Raw fuel in the exhaust can melt converter substrates.
• Document symptoms and fuel level to aid diagnosis.

Our process focuses on finding the cause, not just clearing the code. First, we verify the concern, capture an initial OBD-II scan, and review freeze-frame data to see conditions present when the fault set. Next, a factory scan with Mopar wiTECH checks all related modules for current, stored, and pending DTCs. Based on the code path, we perform targeted isolation testing—visual inspections, smoke/pressure testing for EVAP, circuit integrity checks, and fuel/ignition evaluations on the 5.7L V8 as needed. We document results and provide a written estimate before any repair work, aligning with {{rooftop.warranty_terms.diagnostic}}. If you approve, we complete repairs with genuine Mopar parts and validate monitors for inspection readiness. Have questions or ready to proceed? Schedule service or call {{rooftop.phone}}.

Examples of OBD-II codes that can illuminate the CEL include P0300–P0308 (random/single-cylinder misfire), P0420 (catalyst efficiency below threshold), P0442/P0456 (EVAP small/very small leak), P0171 (system too lean), and P0133 (O2 sensor slow response). Misfire codes left unaddressed can overheat and damage catalytic converters, driving up repair costs. Persistent EVAP leaks can cause fuel odors and an emissions inspection failure. If a catalyst efficiency code sets, continued driving with rich/misfire conditions may further degrade converter performance. Oxygen sensor and lean-condition codes reduce fuel economy and drivability if ignored. Bring your 2013 Dodge Challenger to Herb Chambers Chrysler Dodge Jeep RAM FIAT of Millbury in Millbury for an accurate diagnosis — schedule service.

Welcome to Herb Chambers Chrysler Dodge Jeep RAM FIAT of Millbury, your premier multi-brand automotive destination in Central Massachusetts. Proudly serving Worcester County and the surrounding communities—including Worcester, Auburn, Grafton, Shrewsbury, Sutton, and Oxford—we pair dealer-level technology with local convenience. Our state-of-the-art onsite Service Center uses Mopar factory wiTECH tools to access manufacturer data beyond what a generic code reader can see—essential for accurately diagnosing modern systems. New England cold starts and rapid temperature swings can surface EVAP and cold-start faults; our team recognizes these patterns and tests accordingly. With {{rooftop.certified_tech_count}} certified technicians and {{rooftop.years_in_operation}} years serving the area, we provide clear results and a written plan. Find us at 2 Latti Farm Road (off Route 20), Millbury, MA 01527. For directions or timing, call {{rooftop.phone}} or schedule service online.