Technical FIAT stilo 1.6 running on 3 cylinders

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Technical FIAT stilo 1.6 running on 3 cylinders

CzechFiat

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I have fiat stilo 1.6 2003 and day to day it has mind of its own main issue i have right now is that sometimes its running on 3 cylinders and it feels really sluggish atleast by the sound i can tell its on 3 cylinders since it sounds like a tractor
-not caused by ingition coil pack since i try two new ones both bosch and bremi and that didnt solve it
-this issue comes and goes sometimes its good for few weeks sometimes its changes in one start
I have no idea if its ecu issue or cable problems soo any help apreciated
All faults i am getting on my scanner are multiple missfires detected, cylinder 3 missfire detected and sometimes lambda sensor below threshold
 
Yes i noticed the very odd ecu placement and i think that might be the key to the problem since everytime the ecu cooldown its gone what is the best location for ecu then the wires are somewhat limiting and straping it to intake duct doesnt seem any better
I havent been able to find any good guide where to relocate tge ecu so any ideas are welcome
 
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I already relocated the ecu (can explain where to since its the Best location you can get sorta with cables) still same issue sometimes its running good sometimes its 3 cylinders mode i am worried about my ecu anybody known good place where to send it for refurbish in dorset
 
I already relocated the ecu (can explain where to since its the Best location you can get sorta with cables) still same issue sometimes its running good sometimes its 3 cylinders mode i am worried about my ecu anybody known good place where to send it for refurbish in dorset

And replaced the ECU after the relocation? Once it’s been damaged it’ll need replacing / repairing. Relocating will only prevent an undamaged one from being damaged.
 
Thats what i have to do i supose send it for repair somewhere just need to find good place which i dont known about yet
 
Soo i got my ecu back and aparently its running how it should be they have tested it and dont see reason why my ecu would cause this issue now i am back to square one well atleast ecu is good i supose
 
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