Question 1

Can I drive my car if it failed smog?

Accepted Answer

Yes until registration expires.

Registration cannot be renewed without pass
Ticketed if registration expired
Temp operating permit available short-term

Per BAR Consumer Assistance Program guidelines.

Question 2

Why did my car fail smog?

Accepted Answer

Check engine light most common. Failed oxygen sensor next. Catalytic converter degradation. Readiness monitors not set. Per BAR Consumer Assistance Program guidelines.

Question 3

Will a check engine light fail my smog check?

Accepted Answer

Yes automatic fail in California. Must be resolved before retest. Can stem from minor issue gas cap or major sensor. Do not clear the code right before testing. Per BAR Consumer Assistance Program guidelines.

Question 4

Can a loose gas cap fail my smog?

Accepted Answer

Yes triggers evap code. Easy fix tighten or replace. Drive 100-150 miles after fix. Monitors need to reset. Per BAR Consumer Assistance Program guidelines.

Question 5

How many times can I retest after failing?

Accepted Answer

Unlimited retests allowed. Must pay inspection fee each time. No certificate fee until pass. CAP can help with repair costs. Per BAR Consumer Assistance Program guidelines.

Question 6

Is the retest free if I just failed?

Accepted Answer

Depends on shop policy. Many offer free or discounted retest within 30 days. Free retest only at same shop typically. Ask at time of original inspection. Per BAR Consumer Assistance Program guidelines.

Can I drive my car if it failed smog?

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