Tips
Worried about passing your next smog?
Follow these tips to maximize your success!
01
Check engine light
Make sure your vehicle's check engine light or malfunction indicator light (MIL) is not illuminated. A constantly illuminated check engine or MIL will result in an instant smog failure. A certified repair shop or home mechanic can help you diagnose and fix the cause of the check engine light's illumination.
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*Note* : California State Law prohibits the smog technition from refusing to test your vehicle based on the fact that they notice the illuminated check engine light and WILL fail your vehicle. Ensure your vehicle is ready and with no warnings before your test.
02
Operating correctly
A vehicle that is not operating correctly or "running right" is more likely to fail inspection. If your vehicle is not operating correctly, seek maintenance help before your smog test.
03
Warm it up
Your vehicle needs time to warm up before it begins to run at its optimum level. If the engine is still cold, it could increase the probability of failing the test. It is reccomended to drive at least 20 minutes or 10-15 miles before your test
04
Fuel Additives
Using fuel additives can help your vehicle pass inspection by lowering emission levels. The fuel additives are poured directly into your gas tank and will clean carbon deposits from your vehicle's intake and exhaust, allowing for better flow of fuel and air. Besides passing your smog, additional benefits of fuel additives are increased overall engine performance and reduced emissions.
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*Note* : Be sure to read your fuel additive's instructions regarding smog testing. Some additives and treatments requires complete application and refueling with fresh fuel prior to the smog check.
05
Inflate your tires
As part of the smog testing process, he smog technitian may need to drive your vehicle on a dynamometer. Ensure your tire pressures are even and correct to enable your vehicle to be driven with greater stability and accuracy during the test. This will reduce emissions output and give your vehicle a better probability of passing.
06
Change the oil
If you are nearing your next oil change interval, change the oil prior to your smog test. Your vehicle is designed to breathe fumes located in oil compartments. If your oil is contaminated or old, these defects may negatively impact your vehicle's emissions and cause a test failure.
07
Battery recently disconnected
Make sure your vehicle's battery was not recently disconnected. When the battery is disconnected, your vehicle's internal emission controls is erased within its computer and will not pass the smog test without them. If your vehicle was recently jump started, or the battery was recently replaced, it is recommended to hold off on your smog test for at least one week and drive 100 - 200 miles within that week.