The stop engine light might not come on on your N14 Cummins when the switch is off.
Yes.
Forget the fuse. Maintain your engine.
Really depends on model year, and what specifically the light is. If it's the stop engine light, then a fault has been detected which will cause the engine to shut down. On older trucks with mechanical engines, a stop light typically meant that inadequate air pressure is in the system.
sleeps ;)
Engine coolant temp running 220 degree F
The oil light is a red warning light that is telling you that the engine oil pressure is low or non-existent and to stop. Severe engine damage will occur if you continue to drive the vehicle. I would suspect you have already done serious damage to this engine. It is not accelerating very well because it is dying from a lack of lubrication. Remember RED means STOP.
How can I reset engine light on renault master van 2012 125bhp
It is idling. This is hard for an engine to do smoothly.
There are pages and pages of things that can cause a check engine light. You need to have it checked with a scantool. Then the code can be diagnosed and repaired.
Check your brake (stop) light fuse
If the check engine light is flashing as you are driving it means you are about to destroy the catalytic converter(s). Stop the engine and get it to a garage.