Ignition problems of an X Trail 2008

Hello, a 2006 has just noticed, I do not know what type of motor it is but the one that repairs is a QR25, it is possible sensors, if they are not sensors, check taking out a candle and once the interior of the combustion chamber to verify that it is not the head of head, it is normal after a heating, I do not know if I had temperature problems, if you have not had temperature problems, the engine is time. It is possible to find out with a Scaner in the last case, it can be the car's computer failure.

If you have a spark and fuel, you have to start except that you are not well tuning, distribution, dentate strap or chain, piston one above compression, the two closed valves, then you will see if it is late or advanced, what type of ignition do you have? Lost spark or electronic distributor, look if you have dry coil if all the cables throw a good blue spark, you put a spark plug and give it start, do with all one by one by one

Thank you for your comment, it is really helpful if you have a spark, everything you comment on the chain is czech. Manpo thousand thanks

If thanks Mira, everything is Czech and the OBD2 was connected and marks a code that is P1777 that is Step Motor or request for lighting delay of failure circuit I would appreciate it if they could inform me what this code means a thousand thanks from before hand greetings greetings

If you appreciate your help, your help friend looks is a 2.5 liter engine of an Xtrail 2008, everything is more bad to do. It has a spark, it has gasoline fluid, but when connecting the SCAner OBD2 it throws a code that is P1777 that means Step motor or retardation of ignition of failure circuit and really I do not know what it means rather I do not know where to check that fault if they could help me