Dont laugh I know, but I have had this car for years and its been a good workhorse, about a year ago slight misfire or flat spot started, and it gradually over the year got worst, during this time I have replaced what I can this include the following Dist,cap,rotor,leads,plugs Coil, Tranistorised ign module Idle speed regulator Ign ECU Inj ECU Its a 92 V6 SEI 12V Manual Estate. It never has the fault when cold but as the needle reaches the 90 mark it will start, I never loses Idle, and can drive through it to about 3000 Its a throttle position fault rather than revs related but comes in