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emissions

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Is It Safe to Drive with the Check Engine Light On?
The check engine light is tied into your car’s onboard diagnostics system, and it’s designed to light up (usually in yellow) whenever...
How to Get a Smog Check
Smog checks are designed to help lower the emissions created by vehicles. The word “smog” refers to smoke and fog air pollution, which is created in large part by emissions from cars. While smog checks aren’t mandatory everywhere in the...
How to Install a Catalytic Converter
A catalytic converter is one of the most important emissions components of the modern gasoline engine. It is...
Is It Safe to Drive With the Emissions Light On?
There is really no hard and fast answer to this question. It really all depends on what made the Emissions Light come on...
Is It Safe to Drive With the Emissions Light On?
There is really no hard and fast answer to this question. It really all depends on what made the Emissions Light come on...
The Check Engine Light Demystified
Your car Check Engine Light can mean many things. The Check Engine Light comes on when there's an electrical or mechanical problem with your car.
The Check Engine Light Demystified
Your car Check Engine Light can mean many things. The Check Engine Light comes on when there's an electrical or mechanical problem with your car.
Top 10 Ways to Make Your Car More Green
Every car produces greenhouse gases. You can reduce your car's environmental impact with tune-ups, filling the tires, and making your car lightweight.
Top 10 Ways to Make Your Car More Green
Every car produces greenhouse gases. You can reduce your car's environmental impact with tune-ups, filling the tires, and making your car lightweight.
Top 10 Ways to Make Your Car More Green
Every car produces greenhouse gases. You can reduce your car's environmental impact with tune-ups, filling the tires, and making your car lightweight.
Symptoms of a Bad or Failing Exhaust Air Supply Tube
Common signs include exhaust leaks, engine performance issues like a reduction in power and acceleration, and increased emissions.
Symptoms of a Bad or Failing Exhaust Air Supply Tube
Common signs include exhaust leaks, engine performance issues like a reduction in power and acceleration, and increased emissions.
Symptoms of a Bad or Failing Evaporative Emission Control Canister
Common signs include the Check Engine Light coming on, raw fuel smell coming from the back of the car, and a collapsed or leaking fuel tank.
Symptoms of a Bad or Failing Air Injection Hose
Check your car's air injection hose for signs of damage. If there are idling issues or the Check Engine Light turns on, you may have to replace it.
Symptoms of a Bad or Failing Air Diverter Valve
If your car is running rougher than usual, gas mileage is suffering, or the Check Engine Light is on, you may need to replace the air diverter valve.
How Long Does an Exhaust Air Supply Tube Last?
Since Since 1966 car manufacturers have had the pressure on them to drastically reduce the amount of emissions that vehicles send out into the atmosphere. Technology has come a long way in that time, and has allowed for all kinds...
How Long Does an Exhaust Pipe/Tube Last?
Without Without your vehicle's exhaust system, the exhaust fumes/gases would have nowhere to go. This would cause all kinds of emissions to be released into the atmosphere, and would pose a danger to drivers who would have to breathe them...
5 Essential Things to Know About Partial Zero Emissions Vehicles (PZEV)
If If you’ve always assumed that Partial Zero Emissions Vehicles (PZEVs) were some kind of electric vehicle, it’s time for a bit of a car lesson. Here we’ll explain what all those letters mean, and how they affect you –...
How Long Does an EGR Pressure Feedback Sensor Last?
In In today's world people are more aware of exhaust gases than ever before. With that said measures have been built into modern vehicles that are meant to cut down on the emissions released into the air. Built into your...
How Can I Prepare For an Emissions Test?
Annual Annual emissions testing is required in order to ensure that your car is not producing too much pollution and that your emissions control components are in working order. While not all areas of the US require emissions testing yet,...

Related questions

Question
Why does the check engine light keep coming back on?
The check engine light comes on and stays on if the onboard computer sees a problem that could cause an increase in emissions or a problem with its systems. After looking at most of the possible codes or issues that...
Question
What does the malfunction indicator Warning Light mean?
The malfunction indicator Warning Light is on your instrument cluster. It illuminates when the On-Board Diagnostics-Second Generation (OBD II) system detects an issue. The OBD II system monitors your vehicle’s emissions. When the malfunction indicator Warning Light is illuminated, it...
Question
What does the malfunction indicator Warning Light mean?
The malfunction indicator Warning Light is located on the instrument panel. When this light illuminates and blinks, then the vehicle has detected that the engine is misfiring. When the light illuminates and is steady, then there is an issue with...
Question
What does the malfunction indicator Warning Light mean?
The malfunction indicator Warning Light is connected to the On-Board Diagnostics-Second Generation (OBD II) system, which gauges the vehicle’s emissions. When the malfunction indicator Warning Light illuminates, then the OBD II system has detected an issue with the emissions system,...
Question
What does the malfunction indicator Warning Light mean?
The malfunction indicator Warning Light is located on your instrument panel. When this light illuminates, your vehicle has detected an issue with the emissions system, and you should have your car serviced as soon as possible. Tip The malfunction indicator...
Question
Transmission overheating
Hi. The transmission temperature message pops up on your control panel when the powertrain control module (PCM) has detected excessive transmission fluid temperature. This is a warning to the driver as extreme temperatures can damage the transmission. Transmission temperatures can...
Question
Failed smog test
Hello. The catalytic converter acts as a filter for exhaust gasses emitted from the vehicle. This purpose of this is to reduce the pollutants that are expelled into the environment. The first thing you could try is adding a catalytic...
Question
evap
Restriction in the EVAP vent or purge hoses can also cause this code. A restricted EVAP canister will also set P0446. A smoke test can find restricted canister. I suggest having a mechanic come out and diagnose your Check Engine...
Question
Check engine light stays on
Hello. In order to know why the light is on, I would need to know the codes from the computer. It can be anything for a computer issue to a bad gas cap. I usually scan the computer first to...
Question
Car failed emissions test
Hi, to fix this problem you will need to replace the intake manifold gaskets. That will take care of the Barometric Pressure Sensor. I would inspect the exhaust gas recirculation (EGR) valve, since it may have been left open causing...
Question
Can you pass emissions with a turbocharged car with odb-2 if it did not originally come with a turbocharger?
Can you pass emissions with a newly turbocharged car that has ODB-2 that does not come with a turbocharger from the factory? It is illegal to modify any factory installed emissions system on a motor vehicle. Adding a...
Question
What would your advice be to a person who needs to get a smog check on their car to make sure it passes the smog check? 2005 Mitsubishi
Hi there - the most straightforward and least expensive approach to this problem is to simply take your vehicle in for testing 15-30 days prior to your "deadline" (birthday month?). Most states or metro areas allow a 30 day "repair...
Question
I have a 1986 Chrysler Laser turbo with 13700 miles that failed emissions. Do oxygen sensors go bad from sitting around too long?
Wow, I almost bought one of these new back in 1986. It is possible that due to age, any number of sensors can be bad, even without a Check Engine Light being set. The best way to determine that is...
Question
The emission light has just come on after my car slowly leaking a clear fluid out of the back for two days but cant bring it to the shop for a week, is it safe to drive?
Does the fluid smell like gasoline? If it has no smell it is probably just condensation coming from the exhaust. If is is just water from the exhaust there is nothing to worry about. The light is probably on for...
Question
Failed emissions after P0505 code... Considering options
The mechanic that checked your vehicle is giving you a possible fix by cleaning the throttle body of built up carbon. This may help with the idle and P0505 code, and for passing the emissions test. The throttle body is...
Question
Readiness code for emission
Hello. Since the vehicle sat for that long, you may have to drive it for about 500 miles before it resets. The key is varying your driving. You need to drive it at highway speeds, around town, stop-and-go driving, and...
Question
Check engine light on and recurring P0455
Hi there. The P0455 code that you are getting in the computer is a different issue than the transmission. Most of the time it is caused by a bad gas cap or a leak in the system. If the gas...
Question
P0420 code and dash lighs on
The vehicle stability control (VSC) light and code P0420 are for two different problems. The VSC system would need to be tested for codes for that system. The code P0420 is for the O2 sensor or problem with...
Question
Service engine warning, MAF code and O2 sensor code, along with check suspension light are turned on
Hello, it sounds like you have quite a few things going on. I am going to do my best to break them down for you. First if the engine is very loud when idling and the belt has...
Question
High CO2 emissions on a '98 Mitsubishi Carisma
Often it's a GDI because they carbon up the engines over time. Pay a mechanic to carbon clean the entire engine. Then you'd want to pray that the cat hasn't been ruined. It may already be ruined. It's a '98...

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