How are your plug leads? I had a misfire in an Escort XR3i that was solved by new leads. Engine started ok and ran up to 2000rpm. Any more and it misfired badly. The new set of standard leads worked immediately. The suspect ones looked ok but clearly failing in use. Can you try a swop with another set? The misfire started intermittently but progressed to all the time.
Last edited by sospan; 02/07/23 04:58 PM.
