Nissan Frontier problem

It is difficult but not impossible, most vehicles do not pass through the computer the theme of the spark, this is separate by means of a magnet or sensor, but if you want to get out of doubt you have a scanner and this will accuse you of a unit of command if it has a failure, when a vehicle is heated a lot it is normal for some feeling sensors, such as the temperature or anyone that is directly in the butt or block, you have the scam to leave the doubt.