Diesel Emission Testing

Check Engine Light

Any vehicle presented for testing with a CHECK ENGINE/MIL light on while the vehicle is running will result in FAILURE for Electronic Engine Controls.

Veci Sticker/Deleted Vehicles

All 1991 or newer vehicles will be visually inspected for the presence, integrity and operation of the originally installed Original Equipment Manufacturer (OEM) components.

Tampered, Missing or Deleted equipment will result in FAILURE for the visual inspection portion of the emissions test.

Deleting a vehicle is the removal of the Diesel Exhaust Aftertreatment System and the Exhaust Gas Recirculation System (EGR).

Refer to your Vehicle Emissions Control Information (VECI STICKER) decal usually found on the engine bay for OEM components.