i am sorry guys i am not a volvo owner but here seems there are people very prepered and seems you guys know a lot.


my problem is very easy:
Opel calibra aspirated 2.0 16 V (154 hp)
Fuel system : Motronic 2.8 with a DIS
I have replaced with a new part from the factory:

-all engine (7000 €)
-new gearbox(2500 €)
-airmeter sensor(250€)
-O2 sensor (120€)
-water temperature sensor(40€)
-air temperature sensor(20€)
-Knock sensor (40 €)
-throttle position sensor(50 €)
-hall sensor of the cam shaft(120€)
-catalitic converter, the central part and the terminal (1000 €)
-Fuel pump+fuel filter and fuel regulator(400 €)
-DIS + cables + spark plugs (500 €)
-air filter

I didn't replace the ECU,injectors and the Hall sensor in the cranck shaft.

I checked all the wires and cleaned them all with special liquids more times.

I don't get any error code and the diagnosys says all the parameter are ok.
The car didn't change at all.Sometimes i have all the power but once per month and for few hours.when the car goes well the noise (music) of the engine is complete different you can hear the little explotion of the 4 cylinder.

Do you think can be the injectors? or the Ecu?

Please help me i am very sad becouse i spent a lot and nothing changed

Thanks in advance