First post! Long time watcher of many threads.

Had a problem with a 53 Plate 70k ST170 showing engine management light and noticeably miss-firing at all times. Still pulled quite well though.

Fault code showed miss-fire number 3.

Changed the coil pack, plugs (gapped correctly), leads, injectors and re-set the ECU about three weeks ago and it's still happening. Now (last night) it's randomly showing two error codes, miss-fire number 3 and also multiple random miss-fire 3 and 4 and stalling when coming to a stop.

It's driving us nuts. Got garages properly confused with it, wondered if one of you guys could help?

Cheers