What happens if your car fails a smog test?
Read on to learn six factors that could drastically affect your car’s smog test outcome. If your car needs immediate repairs, you should not subject it to a smog check. There is a very high likelihood that the car will fail the smog test entirely if major repairs are needed.
Can you do a smog test on a cold engine?
Cold Engine. It’s not a good idea to do a smog inspection on a car with a cold engine that was only recently started. Ideally, you should drive your car for at least 20 minutes before arriving at the smog check station.
Can you get a retest for a smog test?
Smog test stations are getting a lot more competitive with each other in recent years, and this is a very common deal they offer to attract more customers. It could save you quite a bit of money on a retest. When you go to have your vehicle smog checked, have as many cards stacked in your favor as possible.
Do you have to fill your tires before a smog test?
During your smog inspection, the technician may have to drive your car on what is called a ‘dynamometer’ as part of the testing process. Fill your tires to the correct pressure prior to the smog test.
Why did my car fail the smog test?
The vehicle has approx. 200K miles. (the odometer is broken) It seems to start and run fine, but it failed to pass a California smog inspection.
What to do if your smog test is too high?
1. Check for fuel control by watching O2 sensor operation. 2. Check the EGR system for proper operation. 3. Perform a catalytic converter efficiency test. 4. Repair as required. I’m a CA Smog Tech, so post or PM me if you need additional help or direction. Sounds like you just repeated what Mike said.
Why was my NOx too high on the smog test?
The only emission that was above the limit during the smog test was NO, however both HC and CO measurements were about halfway between “average” and maximum. A 2nd website said, “High NOX emissions are almost always due to a defective EGR valve (or some component that controls the operation of the EGR valve).
During your smog inspection, the technician may have to drive your car on what is called a ‘dynamometer’ as part of the testing process. Fill your tires to the correct pressure prior to the smog test.