Dahiatsu Terios Codi P 0350 and is cut + 15

Good night I need help with a Dahiatsu terios, the problem that presents me is that when it reaches service temperature, the truck makes a kind of explosion for the admission and escape at the same time, as if the current was cut and returned, the light of Chek Engine turns on and turns off at the time that the fault is produced I have reviewed coils Direct coils of the battery The direct earth to chassss and the signal from the game in the ECU is removed the fault .... in the diagnostic team the code P 0350 (Failure Principal Ignition System) generates me I hope that someone has occurred this problem and helps me with an answer to this fault that has taken me more than a month thank you very much ....

Hi Totoracing2.
You point out that the fault occurs when the engine acquires working temperature, that puts one to think. There is the possibility that the problem is due to valves in poor condition in a cylinder- an electrical signal out of time or ignition degrees outside the limit- even a fissure in the cylinder head that does not touch the cooling system, but these causes cause the failure at any working temperature. You have a good investigation ahead, of those that some old mechanics like. Luck.
Miguel

Thank you Miguel If in effect the cylinder head is based on valves, the flat was sought, the plane was brush and the fault is still today noticing the entire branch that I have it totally disarmed that the current tension makes variations in the tester of 13.8 14.5 and gives peaks of 19.6 18.3 and so on it has reached peaks of 8 and 9 volts.Desconecte the alternator and follows the disparication of the current. When the fault occurs it is as if it were cut and the positive tension returned and discard the refusal because I made new independent lands by chassis is actually a fault which is very mysterious the truck the truck referred to me as a condesionary because they did not find that fault in advance thanks for your help and I hope to get the evil of the truck to publish it by this means ...

Hello friend, my experience with this vehicle tells me that it is less than what you imagine.
To start I recommend that the spark plug chupones change and if you do not solve the full gasoline pump changes

Well friend of the Terios ... Daihatsu, it has happened to me with Charade models, 1.6 with injection, models of the year 2003. Two in question, but since it is similar displacements, I think I can help you my investigation of the fault. In the cylinder head, hidden on the side of the admission ducts, there is a land that comes from the cable deck from ECU. They are very important because they are the operating lands of the computer, which are independent of the land of chassis/motor, which is a land to join the negative of main power, to link the starter engine to the 12 volts source. As the data is a "tension drop in the source of ignition", and also varying the voltage of your source, it is the natural response to the instrument of a source affected by spurious oscillations of the high voltage unit of ignition. At least I solved the two cars with that problem, (in one, the mechanic who adjusted the engine did not leave the connector eye to the bolt, and the other, definitely had one of the ground cables cut a few centimeters more outside the ring). I hope my guidance experience serves you, and luck with your repair. Greetings, Valdivian.