ELECTRONIC PROBLEMS FIAT SIENA 2003

Exactly 3 months ago the electrical system began to fail, rather said according to the manual it was a problem in the injection system since the yellow foquito of fuel and the red -shaped red foquito was turned on (despite being with 1/2 fuel tank), it takes it to the authorized house and reviewed it deducting that the fault was of the fuel pump which was changed and a clean Injectors With this I believed a matter surpassed but 10 days passed and the discomfort returned this time more acute since it loses power and turns off. I took it again and reviewed it, I have currently taken it 4 times and nothing they give with the damage; Keep bothering sometimes in that state and really when it fails you can't advance. He took it to another mechanical workshop and the same story bother again with the same problem ... please if anyone knows what the problem can be because I already spend some money instead of some pieces and nothing to see that problem over ...
thanks for your help ...

Hello Tavo, I suppose the fuel filter will have changed, if so check the pressure regulator and the fuel tank breathing system, also check the pump relay and the injection, luck and a hug.

How about jal ...
thanks for your help ...
I tell you that the fuel filter is changed including the pump; The breathing of the fuel tank is already probing and it is working normal, the relay was changed and even some altenador
would only have the pressure regulator, I will ask in the workshop if this was done since they made a complete scan and changed from the spark plug wires to the distribution box, they checked the coil and the electronics of the ignition, according to everything I understand everything is recalibrated.
Once again thank you and I will tell you the answer you give me in the workshop ...
greetings ...

I had a similar problem with a VW Bora, Tironeava and went out later, and the problem was the precion regulator that goes on the injection ramp, to prove it before you change it strangle the hose that goes out towards the return from this valve, and accelerate the car if you do not give a problem, if you want to try it, we will put an abrasing. To prompt, then tell us greetings.

Hello, I have a Siena 2003 and I had the same problem and after all the turns that made me give, the silver that I spent and the living with which I crossed me appeared an honest one that scanned it and deleted the fault, made me change the spark plug cables, I bought Genaud brand and the Sienita now works 11 points to gasoline and gas. The guy told me that a spark failure produces the electronic accelerator block in 1.3 16v. Well I hope my comment serves you and they don't keep walking, greetings Heldo.