As a vehicle owner in New Jersey, keeping up with emissions testing is a legal requirement to ensure cleaner air and environmental safety. Failing the emissions test can be frustrating but understanding what causes failure and how to address it can help you pass with confidence. In this month’s blog post, we explain the emissions testing process and review how Shade Tree Garage can address any problems if your vehicle fails the inspection.
NJ Emissions Testing is Performed only on vehicles made after 1995.
NJ Emissions Testing includes the following:
- Onboard Diagnostics (OBD) Check – A computer scans for emissions-related trouble codes current or pending.
- Visual Inspection – Ensures proper functionality of the emissions control system also looking for signs of tampering to defeat the system.
What Causes a Vehicle to Fail NJ Emissions Testing?
- Malfunction Indicator Light On, aka; Check Engine Light On – Automatic inspection failure if the light is illuminated.
- Transmission problems – Anything that effects emissions will put the MIL on, including an improperly shifting transmission.
- Defective Thermostat – if the engine doesn’t warm up quick enough the MIL will illuminate.
- Faulty Catalytic Converter – This monitored component reduces harmful emissions; a failure leads to increased pollutants.
- Leaking or Damaged Exhaust System – Leaks affect emission readings and must be repaired.
- Malfunctioning Oxygen Sensors – These sensors regulate fuel mixture; if faulty, emissions increase.
Diagnosing & Repairing Common Emission Issues
If your vehicle fails, a certified emission technician will:
- Scan for error codes using an OBD reader.
- Test to determine the reason for the codes occur.
- Inspect the catalytic converter, oxygen sensors, and exhaust system for malfunctions.
- Test the fuel and air mixture to ensure proper combustion efficiency.
- Repair leaks, replace faulty components, and ensure compliance.
Shade Tree Garage is a licensed NJ Inspection Facility and an Emission Repair Facility: Which means we can sticker the vehicle once the problem is repaired or resolved.
By maintaining your vehicle’s emission system, you will avoid unexpected failures and keep New Jersey’s air cleaner.
Need an emissions repair or State Inspection? Schedule an appointment with one of our trusted service professionals at Shade Tree Garage. Shade Tree Garage is a State-certified Emissions Repair Facility (ERF).
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