What does check emission system mean on Acura MDX?

The check emission system on an Acura MDX means it has detected a malfunction in the vehicle’s emissions, ignition, fuel, or exhauSTSystems. It typically means the car’s emissions control system is faulty, and the vehicle is polluting the air beyond allowable federal standards.

What does it mean when the check emission system light comes on?

If your light is on, it typically means the car’s emissions control system is faulty, and the vehicle is polluting the air beyond allowable federal standards. A vehicle in this condition would fail an emissions inspection or smog check. Don’t confuse the check engine light with the maintenance or service light.

What does check your emission system mean?

CARS.COM — The check engine light on the dashboard is a warning that many vehicle owners dread. The check engine light is a signal that the onboard diagnostics system (or OBD II) has detected a malfunction in the vehicle’s emissions, ignition, fuel or exhaust systems.

What does emission service mean?

Emission control system, in automobiles, means employed to limit the discharge of noxious gases from the internal-combustion engine and other components. The exhaust pipe discharges burned and unburned hydrocarbons, carbon monoxide, oxides of nitrogen and sulfur, and traces of various acids, alcohols, and phenols.

Why does my Acura MDX have emission system warning?

Sometime “emission system check” would come on; then off. These 2 problems appear then disappear randomly; not together; one then the other.. I was planning to sell the car so wanted to fix the issue; after many repair mistakes, diagnoses , tech decided it was the fuel tank. spend ~1800 the replace the fuel tank.

When does the check emissions light come on?

I have an 07 Acura MDX and every time gas gets low or its just refilled with gas the check emissions light comes on. I’m not going to pay 100$ for them to tell me its the gas cap.

What does the emission system warning sign mean?

So more “tighten fuel cap”… brought the car home, drove for couple days; “emission system check” light came on. Very frustrated, called the tech and he asked me bring the car when there is warning sign. So went to the tech, he connected the tablet and it showed P0420 Catalyst System Efficiency Below Threshold.

When did the fuel cap disappear on my 2007 MDX?

I have 2007 mdx. Not sure exactly when it all started; at first it was “tighten fuel cap”; drive around and it would go disappear, then comes back on; repair tech suggested changing fuel cap; went to the dealer and purchased OEM fuel cap; did not help. “tighten fuel cap” appear then disappear then appear.

I have an 07 Acura MDX and every time gas gets low or its just refilled with gas the check emissions light comes on. I’m not going to pay 100$ for them to tell me its the gas cap.