Loss of acceleration

This sounds like a possible throttle position sensor issue. If it was, I suspect we have some codes so we need to start there. Here is a guide that will help:

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

If your engine has a Diesel then I suspect this is a UK vehicle. If so, that is slightly different then what we have here in the USA.

However, your throttle body is still going to have a position sensor and when they malfunction, you can lose throttle response.

I attached a number of documents below that will help with this. Does this happen often or did it only happen one time?

Please let us know what questions you have an what you find. Thanks

Hi, it has only happened the once as when I drove it back when I bought it the only issue I had was when I reached 70 MPH the steering will juddered. Like I said I'm scared to see what happens if I get it backup to that speed since the fault happened.

Okay. In general this issue normally has nothing to do with the speed you were going. It just happened to be at 70 when it happened but it could have just as easily happened going 20 MPH.

Unfortunately we are not going be able to figure anything out if this doesn't happen again or if we have codes that point to what happened.

So if you have not scanned for codes we need to do that and see if there is anything there.

Thanks