Technical Palio Speedgear Gauges turns off while driving and ignition problem

[gotwald]

Hello All,
1.2 16v speedgear , 2003 model year ,120000 km , speedgear HL model.
I have weird problem since 2 months and i can't fixed. Engine has ignition problem , its stops unexpected times . Especially cold engine has rough idle.. Weird thing is my engine rpm and temperature gauge turns off while driving . These 2 problem has started at same time and for this reason i cant drive my car.
I changed spark plugs with original ones.
Heat sensor changed.
Electrician checked all cables etc, they didnt find any problem.
Battery is new and fully charged.

Do you have any ideas?

 

[Mando]

is the injector or check engine sign lit on the dashboard ? incase you should connect the car to the obd system
I have the same problem and I suspect the fuel pump to be the reason