
Did Your Vehicle Fail the Smog Test?
Smog Test Repair
That's okay, you are in good hands at De Anza Auto Repair. We will complete any needed repairs and reinspect your vehicle.
The 4 most common smog check repairs:
- Bad O2 Sensor Replacement
- Bad Fuel Metering Adjustment
- Rich Fuel Mixture Adjustment
- Faulty EVAP System Part Replacement
- Apply for Consumer Assistance, this is a program offering income-eligible consumers assistance toward emissions-related repairs at STAR test-and-repair stations if their vehicle fails its biennial Smog Check inspection.
- Talk to the pro mechanics at De Anza Auto Repair about starting a maintenance plan. Regular maintenance can reduce smog check failures and high-cost auto repairs in the future.
If your oxygen sensor malfunctions it cannot properly monitor the exhaust and may cause overheating and loss of engine power and the release of toxic emissions. De Anza Auto Repair in Sunnyvale can help you replace your O2 sensor quickly and get you back on the road fast.
Proper air-fuel measurement prior to mixing is necessary for a smooth-running engine. Most drivers discover their vehicles has a fuel metering problem when the "Check Engine Light" is displayed. At De Anza Auto Repair in Sunnyvale we have state of the art computer programs that identify the exact check engine light diagnostic code and quickly complete the appropriate repairs.
Come to De Anza Auto Repair in Sunnyvale to determine if your vehicle is putting out high levels of carbon monoxide due to a lack of oxygen in the combustion cycle. This can happen because of a faulty MAF sensor or oxygen sensor or because of leaking fuel injectors.
EVAP (Evaporative Emission Control System) problems occur when your vehicle is leaking gasoline vapors into the air. De Anza Auto Repair in Sunnyvale can repair troublesome leaks or cracks in your vehicle's vacuum hoses, seals or gas cap.
Worried About the Cost of Smog Check Repairs?
Discover More About Exhaust Repair Services At De Anza Auto Repair in Sunnyvale
Emissions And Smog Testing
Discover more about Smog Check, Testing & Repair
Learn more about Smog Checks vs Emissions Testing

Contact Us Today!
Got questions? We've got answers! Drop us a line, give us a call, or even stop by. Our team is eager to help you with any auto repair needs you have. Let's get you back on the road safely and swiftly!
What Our Customers Are Saying
John and April and the Staff . Where very Pleasant to Do Business with. I Came in there in a Emergency . Because of my right Window wouldn't Roll Up. And they Took me in Right away. Being Iam from Out of Town. That's The Best Service I could have Got on short Notice. And They Also fixed My Head Lamp. I Couldn't be Happier. They Deserve a 10 star Rating. I will definitely let all my Friends and family know about this Place. My Son and Grand Kids. Live in the Area. And I will definitely. Go there for all my Auto Repair Needs. Thank you and God Bless.
Went here to fix my Turo car. April had been very helpful through and through! She helped with the insurance process and has made it seem less for me. Would recommend and come back again!
April was very helpful to my daughter and her Porsche, Boxster. So, when my Prius had problems, I knew who to turn to. It turned out to be a serious problem (head gasket) and both April and Mo's brother John were sensitive to the many issues a retired older person on a fixed income has. They still provided excellent service, treated me with respect and worked with me to find a mix of what I could afford, without compromising the necessary repairs. I felt like I had gained family by the time I got my car back. So, when our Lexus had problems and left me stranded in Auburn, California, I knew who to call -- April worked with me to get the engine codes, run them through her mechanics, determine where I could go locally to find out if it was safe to drive it home and April kept checking up on me -- her last call was well after their closing hours when I had been cleared and was driving it back to their shop. I feel like they really care about people they are not just fixing cars. I am a customer here for life.
I recently had my car serviced at De Anza Auto Repair and I was extremely impressed with their honesty and fair pricing. The customer service was phenomenal, with the staff being friendly and knowledgeable. They explained everything to me in detail and even gave me some tips on how to better maintain my car. Overall, I highly recommend De Anza Auto Repair for their exceptional service and great prices.
