Yes it was.Have changed cts.Fuel pressure was adjusted a while back because it was found to be low.Air filter is fine.I used to have C57's in and it was there with those plugs as well. I have cleaned out tps as it seems to have been apart before.
I will put the throttle body back on tonight and see if there is any difference.I don't expect there will be but, it's worth a try i suppose.

Cheers

Graham.