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Walnut Creek Test Only Center Smog Check Services

We provide the official SMOG CHECK for all vehicles including trucks, SUVs and Gross Polluters using our cutting edge BAR-97 Emission Inspection System (EIS) required by the State of California. The inspection includes a visual, functional and tail-pipe emissions test. Certain vehicles emissions testing require the use of a dynometer for Acceleration Simulation Mode (ASM), or loaded-mode test. The ASM simulates actual driving conditions and allows for more precise testing for CO, HC and NOx - the three most harmful pollutants emitted by motor vehicles.

Once the SMOG CHECK is completed we will provide you a Vehicle Inspection Report (VIR) which is also transmitted to the DMV for your vehicle records. If you vehicle passes, our system will automatically transmit your Smog Certificate to the DMV electronically - which saves you time.


A "PRE-TEST" allows us to perform the exact same test without sending the information to the DMV, enabling you to make the necessary repairs or adjustments to the vehicle before performing a SMOG CHECK.
The "PRE-TEST" is a useful diagnostic procedure for a vehicle with existing problems that may impact the vehicle's emissions system. PRE-TEST : If your vehicle fails the initial SMOG CHECK at our location we offer a "PRE-TEST" at a discounted price. The "PRE-TEST" is the exact same test as a official SMOG CHECK.
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