What does it mean when my emission system warning 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.

What causes exhaust emissions light to come on?

Most of the time, when an Emissions Light comes on, it is due to either a sensor or a problem with the exhaust gas recirculation valve. It is also possible that you have a vacuum hose that has become disconnected, or has developed cracks.

What does emission control engine management warning light mean?

What does the engine management light mean? The engine management light (EML) doesn’t indicate a specific fault. It could be alerting you to one or more issues, typically linked to exhaust emissions. The light is connected to the car’s main computer, called the engine control unit (ECU).

How much does it cost to fix emission control system?

If your vehicle failed emission testing and it needs repairing, then the cost will depend on the exact cause, but the repair work typically starts around $200. Replacing your exhaust system depends on the type of car you drive, but that work starts at approximately $175.

What causes emission problems in a car?

Ignition defects including dirty spark plugs, leaking or open-circuited spark plugs or wires, or defective ignition coils can all result in a shortage of spark energy. Any shortage of spark energy may cause high HC emissions. If the spark occurs at the wrong time, incomplete combustion and high hydrocarbons may result.

What causes the engine management warning light on a VW Lupo?

If you have noticed that the engine management warning light has switched on your dashboard, it is most likely a problem with one of the sensors. This is the most common cause on the VW Lupo. This is due to a faulty Lambda sensor. This part is responsible for helping control exhaust emissions.

What does the throttle warning light mean on a VW?

This warning light – called the Petrol Engine Management Lamp on VW cars – usually signifies that there’s something wrong with the throttle system, and is often accompanied by other warning lights such as the check engine light or the stability control warning light.

What does the EPC light mean on a VW?

EPC is a computerised ignition and engine management system. This warning light – called the Petrol Engine Management Lamp on VW cars – usually signifies that there’s something wrong with the throttle system, and is often accompanied by other warning lights such as the check engine light or the stability control warning light.

What are the problems with my Lupo?

Poor idling or engine cutting out. Problem: If your Lupo is idling very roughly, coughing and spluttering and could also be cutting out when you are driving, the most likely cause is faulty spark plug leads. This is usually the problem if the engine management warning light isn’t on.