Could someone assist in transporting my van to a diesel specialist? It is experiencing a power deficiency and emitting black smoke from the exhaust. When I start the van, do you experience a delay of 10 to 20 seconds until it operates normally? Clarify this for them.They inspected the system and reported that the throttle valve is immobilised in the closed position, resulting in choking. He stated that it is an expensive electrical malfunction. He advised disconnecting the throttle valve and remapping it, which I did at a cost of £240 plus labour, totalling £450. However, the vehicle continues to emit smoke and exhibits a delay of approximately two seconds in power reduction upon releasing the accelerator. I cannot afford to incur further expenses when they assured me it was functioning properly. This is the second occurrence; nevertheless, it seemed as though no repairs had been made, as the same issues persisted. He called me and enquired if I had disconnected anything. Refused to drive it home and departed. He stated that he cannot comprehend it; someone must reconnect the valve. Could you please provide advice? Thank you. Will this interfere with the admissions process?