My FTO is driving me crazy, your help is much appreciated!

[tamsaoud11]

Dear all I am getting really fed up with my Fto and would appreciate your advice, I ve got a GPX 96 Auto , about a month ago and without any warnings , the car felt like it was going on 4 cylinders and it it would not start first time as it used to when its cold and it would start after 3rd or 4th time,first thing that came to mind is change the spark plugs , and i did but it didnt fix it, so i thought maybe injectors are blocked so i got some injectors cleaner from Halfords and used it, reved the engine to 7k shreded the PS and alt belts and still no luck, r eplaced the belts and tried to run a diagnosis but i did not get any codes, they were all flashing at the same pace, then i decided to take it to a garage , they hooked it up to Mut-11 but couldnt read any data from the ECU and when i went home i tried to run the diagnosis test my self and it gave me error code 52, 53 and 72, i was relieved at last to find what was wrong with the car, and to make sure i tried again to extract codes from the ECU the next day but it did not show any errors, reset the ECU drove the car for a bit and replaced the 3 coils also the ignition failure sensor and no luck last thing i thought it must be the ECU , so i replaced the ECU and still no luck , no error codes, no power , it feels like i am towing a a lory!!
does any one kno what could be wrong with my P&J?

thanks in advance for your felp guys