Posted 26 October 2021 - 06:23 PM
I did have a spare coil pack but it did the same, try disconecting that separate pack ( with the heat shield on) ontop also and clean connections.
I also removed the plug caps from the coil pack (the cows udders), these pull off and there is a small metal rod about 12mm long that a spring makes contact with, this inturn contacts the plug. One of mine was pretty rusty, it might not of been the problem but worth cleaning up.
Also my TMAP sensor was also reading 60 degrees too high, so changed this also. I had a few issues at once unfortunately.
You can see this on the Dutch software. Try running a log when car is stone cold and see what temp it is reading, if the car is cold and not been run, it should read ambient temperature. This TMAP sensors are in the SC cars.
Good luck, it drove me crazy.
I replaced the TMAP, changed and checked all the plugs, changed the coil pack with a spare. Started it and it ran great, thought it was fixed, took it to the rolling road guy as it was already booked in for diagnostics. Then when I joined the motorway, at 3k the misfire started again and by the time I got there (30 min journey) it was so bad it ran on 3 cylinders.
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