Problem with the march of my Corsa Coup 2005

Good! To those who can help me a while ago I acquired a second -hand corsa which worked well for a year has now been presenting certain failures and that they have been resolved by the beginning, at first it was suddenly turned off and did not turn on the day in full march it went out and turned out to be the ignition coil that had been damaged, then presented a fault that lowered the revolution and apparent That it is purple that goes next to the EMC module, it was replaced and I remain with a problem that was that it could not stand on when it was cold hawa that heated, the IAC sensor changed, and TPC and improved for a short time, then I am with a failure as if it did not injected the gasoline well and I did maintenance to the injectors and it was very little the timpo that lasted so because Ultimately all the failures joined and I did not know what the last time the lights of the board lit but faint and did not turn on as if he did not send gasoline and there was no spark of ignition but he has cable, spark plug, new and the Scaner does not throw any fault, which if he notices that manipulating the module EMC made contact with the Latin. and runs 2km and turns off, reviewing the relay there are several relay that control some things such as the electro -ventilator, yellow, another that is green of four pins, a light blue one that still off remains hot I do not know what to do and I do not trust any electromechanical because they have solved only with water cloths! Please help me!

Look apparently a ground cable is missing and I think it is the main one because as much as IAC and TPS feed on it as well as the engine temperature sensor in the control module (ECM) there are three lands any of them is not present
if you can apply a land to the TPS in the earth terminal this Earth will feed the rest of the sensors
and possible it will work that test if it works

Put a new general or independent land with a thick cable such as those of battery ppon it to the negative terminal and the other extreme put it in motor or box and test how you will resurrect.

Grateful for the response but I already did the Earth to the engine and the chassis, I would like to prove the previous suggestion of a direct land to the sensor. I changed fuel filter, I did injectors maintenance and it seems to have improved what I still do not understand is the lack of energy when trying to turn it on!