my mechanic no time to check everything yet, so far only basic stuff like air intake, petrol pump, filters and spark plugs were checked and they all looked fine. if drive without pushing the pedal hard, it's ok, no boost, no problem, going uphill also ok because got lots of low down torque, just can't boost. if WOT the engine will missfire like hell all the way to the red line.Thanks Bro Storm LCC for your comment. So what measures so far you have taken. How about your ride condition right now. Is it still driveable.?
In my case I drove to Cherating from K.L with that problem. It was not fun at all when the time you have to slow your car, it will shudder like those bulldozers or tractors.
Forgot to mention that we have changed it's ecu as well. For info, this problem occurs during drving and at idle as well. Anybody here can supply me with the contact number or the address of the workshop.