Technical fiat seicento 899 problem....

[nikosdoykas]

so i got a seicento 899 second hand... the guy that have the seicento told me that have some problem on the fuel thing the injecton indicator turns on and of so they change the ignition coils -bosch and spark plugs and the cables olso .... the car works in the idle like 3 cylinder with black smoce.... i remove the all spark plugs and i see that was black...over rich fuel ---then i buy a kll vag and a 3 pin to obd i down load the iaw-scan2 software (I Τtry olso the fiat ecy scan but can connect to the ecu)and
i see that the pic 1 and i se 2 things that the ingitor is short to the vcc+ground(can this happent)and the labda sensor probe (i change it has a little ruff but ok) olso i change the map sensor ...the idle stepper motor fuel filter and the injector with new one...weber 52300 ... and erase all the falts... ..

i take a car for a ride and ok i run it ... the ingitor inticator make the same thing but if leave the car on the idle after 10-15 sec the bulb turn of and the car run smoothly.... afte 1 push the trotle down the engine make the 3 cyliner noise and after 15-20 sec run 4 cylider smooth without any black smoke.... after that i take again to the diagnostics oly the firt ting isa active... stored injector shorted to vcc term +ground... so i check the fuel pump but it seams to be ok.... fuel came nice.... ANY THOUTS??

 

[nikosdoykas]

so i read to a postn that could be the wiring to the injector it has 2 cables one green/black and pink (ithink.....) black the green black go to the ground and the other strait to injection control unit.... no short at all i stript all the pipe insulator and the duck tapes....

 

[loucifer]

I know this is an old post and the member may not even read it. But the image shared helped me so I will share the screenshots of iaw-scan2 readings of my cinquecento 899 on idle.
It runs on a SPI eco ECU that is stock to the car and a 32 intake manifold taken from my seicento sporting.
I can spot some major differences between the readings in the photo above and mine. I had a lambda error showing up but it had stopped since I cleaned the sensor and since i have been using the gas pedal more as an on-off switch.

 

[loucifer]

so i read to a postn that could be the wiring to the injector it has 2 cables one green/black and pink (ithink.....) black the green black go to the ground and the other strait to injection control unit.... no short at all i stript all the pipe insulator and the duck tapes....

Also, according to Haynes, one cable of the injector gets 12V from the fuel pump relay and the other cable closes the circuit through the ECU