It can.
yes
It is possible, anything that could affect the emissions of the vehicle can turn the check engine light on.
Yes it can if it is bad you will see the cel
It might be that your pcv valve is plugged or the egr valve is sticking.
The EGR valve is located on the passenger side of the engine on a 2006 Silverado 2500 HD 6.6 turbo diesel. A bad valve will cause the check engine light to come on.
A leaky valve cover gasket itself typically does not trigger the check engine light in a 2000 Dodge Neon. However, if the leak leads to oil contamination of other components or affects engine performance, it could indirectly cause the check engine light to illuminate. It's essential to monitor for any related symptoms, such as oil leaks or engine misfires, and address them promptly to prevent further issues.
Stumbles, dies off, low power, poor fuel economy, check engine light
Yes, a faulty idle control valve can trigger the service engine light. When the idle control valve malfunctions, it can lead to erratic engine idling or stalling, causing the engine control unit (ECU) to detect an issue. This triggers the check engine light as a warning to the driver that there's a problem that needs attention. It's advisable to have the vehicle diagnosed to identify the exact cause of the warning light.
Swirl Control Solenoid Valve
EGR valve is Exhaust Gas Recirculation valve that recirculates exhaust gas through the intake manifold to improve emissions. Typically this valve has a electric connector and harness that is computer controlled. If this valve is faulty, it will cause a check engine light to appear, or a service engine light. In some cases, it will make the vehicle run roughly. Does that help you?
Yes, along with dozens of other things.
Yes, that is good. FYI, if you continue to unplug things while the engine is running you may cause the check engine light to come on.