Motor self -diagnosis witness light

Hello, sometimes the light of the motor self -diagnosis witness, located in the center of the board, does it since it placed CNG, and does not do so followed, it is a second and goes out, I do not know what it may be, thanks for your time.

When the ignition time is so short and no failure, it can be due to a poor contact of any of the sensors or a small cut on the same board,

Thank you, ensure the injectors and add oil, so far it was not turned on, it must have been a contact, thanks for the support !!!!!!!!!

The Yellow color check Engine in the case of the Peugeot indicates that there is or there was some malfunction of some system that composes the engine (injection, ignition, admission) but also turns on when the mechanical part of the engine has suffered some slight damage that can be beginning to be generated, therefore and knowing that its vehicle is adapted to function with gas of the normal (+90) and if so, this factor can alter the ignition for self -control or could be the refrigeration system is not working on the most correct maenra, and in what can help you with pleasure, I hope your response.

Thanks for the data, it is working well now, and if it may have been the temperature, I had a loss of water in a heating hose, happy holidays for all !!!!!!!!