Skip the auto shop - Our mechanics make house calls

Q: Need to pass smog check

asked by on

My car did not pass its smog check.

A: Hi there. Your smog check is measured as to...

Hi there. Your smog check is measured as to how efficiently your vehicle is burning fuel and air. Smog is reliant on many different components. Your EGR valve, vacuum, and also your catalytic converter are factored potential factors. I would strongly recommend having a mechanic, such as one from YourMechanic, inspect your vehicle and make the repairs needed to pass the smog test.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Car takes time to start

In many cases, a failing sensor can cause an extended cranking time or multiple attempts to get the vehicle started. The problem may be difficult to track down. Have an experienced automotive technician, such as one from YourMechanic, inspect the...

Q: I can't get the axle out of the driver side hub.

The axle constant velocity (CV) joint has splines that go through the outer hub assembly secured with a large nut. Sometime when the CV axle needs to be removed the splines of the CV joint will rust and corrode then...

Q: P0231 code coming on - reduced RPM and trembling with the AC on

Diagnostic Trouble Code P0231 relates to a problem with the wiring in the fuel pump circuit, although it is also possible to have a faulty fuel pump that draws too much current and creates a voltage drop in the circuit....

Related articles

How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.