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Any one or more of these 14 maladies can cause your car to fail smog in California.
(Best to pay a little extra and get a pre test, otherwise you face the very real possibility of failing the official test, which will result in you being reported to the state as a potential polluter, and you will be forced to go to a "test only" station to correct the problem as well as other expenses which I don't even want to get into, as it is beyond the scope of this question...)
1. Exhaust Leaks 2. Non-factory standard carburetor, (they know, you can't fool them)
3. Improper or missing emissions equipment, (all those little hoses need to be intact and connected to the right nipples, exactly the way it came from the factory. Look under the hood for a schematic diagram decal to see what goes where)
4. Bad or missing catalytic converter
5. Obvious fluid leaks
6. Timing not within 2 degrees of factory standard
7. Vacuum leaks
8. Fouled plugs
9. Bad ignition wires
10. Carb set too rich or too lean, or set to improper idle speed
11. Illegal performance parts, (rule of thumb, if it is not factory spec, its illegal)
12. Poor compression in one or more cylinders
13. Valve train problems (burnt or stuck valve)
14. Rotten gas, or gas with moisture in it.
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Will a bad egr cause smog test fail?
yes it suppose to circulate the smoke if clogged smog test will fail
What can make a car not pass a smog check?
The answer to this question is fairly complex. We recommend you visit the link below to find out how to pass the smog check and what might cause your vehicle to fail... http://www.smogtips.com/passing_inspection.cfm
Will you fail smog in California if serice engine light is on?
Yes, automatically.
Will a missfire cause your car to fail the smog check?
I'm not sure what is checked during a smog check. In the UK we have an emissions test. If the vehicle (petrol engined) has a miss fire it will bring the carbon monoxide level down. But in doing so The hydrocarbon level will rise. That will cause a test failure
Does a 1974 Volkswagen bus need a smog check in California?
no anything below 76 is a no smog
Will a bad catalytic converter cause you to fail the emissions portion of the smog test?
Yes!
Your 98 Chevy s10 fails smog test have replaced everything but egr valve and oxygen sensor what else can you do?
A faulty EGR valve can cause a 98 Chevy to fail a smog test. The oxygen sensors should also be tested as they can also cause a 98 Chevy to fail a smog test.
Can you remove smog pump 1995 Chevy caprice?
Yes, but you have to have the PCM programmed for the removal. You might fail visual portion of a smog check, however.
What can cause a 1999 Saturn SC2 to fail the smog test after the battery was replaced?
Have it scanned to determine problem
Will your car pass smog test if check engine light is on?
It depends on where you live. In California you will not
How much does a smog check cost in California?
Standard California Smog Fee of $8.25 plus the dealer may not charge more than an additional $50.From www.bar.ca.gov on 2/9/2010:How much does a Smog Check cost?Smog Check prices vary in different areas. Prices for Smog Checks are not regulated, so you are encouraged to shop around. For a list of stations in your area, visit the search page or call (800)952-5210.
What is white smoke when you step on gas?
Smog check failure and new engine in California under the newly adopted smog regulations. Only in California. No car will pass. Predict collapse of the auto industry.
