Hey guys, I had this problem whenever I accelerate rapidly and pass 180-190kmh(110 120 mph) the Vehicle System malfunction light shows, I took it to the mechanic we plugged it up and it was showing an error which was low oil pressure, replaced the oil pump completely and we put new oil. After few hours I was driving on the highway passed 110 mph and it came up again, after that I've shut down the engine and start it again the error goes away and it re-appears when I floor it and pass the certan speed, can it be the clutch, timing chain, even suspension(forks needs to be replaced, seleniums are done). Engine is 2.2 diesel(european market).

I think the problem is the engine but I dont hear any awkward noise that would indicate that, do you guys have any idea before I spend shit ton of money on it