Motor Control System Failure (Alfa Romeo GT stele speed)
I have a technical problem that the local Alfa garage dealer fails to find its route. I own an Alfa Romeo GT, 2.0 Selespeed. For some time now, a message comes up, "Motor Control System Failure", and the sign of Engine lights up. Then, rather strangely, the petrol ("Benzina") indicator falls to zero, regardless of the actual level of petrol, the car engine seems to loose power, the change of gear becomes very rough/violent, and the car only allows to be driven up to second gear and up to 4k revs - as if it enters a "safe mode".
Quite accidentally I discovered that if the car is then shut down, and restarts by allowing the engine to roll for some seconds, then it may run normally but with the Engine signal still on and with a possibility to return to the "safe mode" at any point of time - the risk of that happening is when the car is stopped, say at traffic lights, and then accelerates where the critical part is the change of gear from 1st to 2nd.
Apparently, when the car goes for relevant diagnostics to the garage, the computer does not indicate any specific problem. By a simple re-programming it seems to be immediately repaired, and even after a few driving tests it still looks to be back to its normal which unfortunately makes the car engineer to assume that the problem has been fixed. However, when I get the car park, shortly thereafter all the mentioned symptoms appear again.
I have been troubled with this for some time now already and heard all kind of theories from the local engineers whom I am long convinced that they have no clue on the issue whatsoever (in general, the local dealer does non have a good reputation in terms of service). I also tried to engage another independent garage but no results again, they all think that they solved the problem at the time they return the car to me, but it never happens.
In case anyone here suffered from the same issue, I will appreciate if he could share his comments and a direction that a local engineer could follow or look into. I love the car but I have become very desperate to find the solution and suffered too much already, so I will appreciate positive replies only.
Many thanks and hope someone will be able to shed some light...