2004 Nissan Murano- Service Engine Soon light is on

Question

"Service Engine Soon" keeps appearing on my instrument panel. Taken it back to Dealer 4 times now. Code that keeps coming up is"no fault engine code"

Answer 1

If you are getting P0420 that is why the engine light is coming on. 

the car will be need to be checked

Possible causes

- Three way catalyst converter Bank 1

- Exhaust tube

- Intake air leaks

- Fuel injectors may be faulty

- Fuel injector leaks

- Spark plugs may be faulty

- Improper ignition timing

- Engine Control Module (ECM)

 

 

https://www.autocodes.com/p0420_nissan.html