Thank you for the quick reply Rick. The miss is consistent, we have not driven it with the miss but engaging the map when the car is hot or cold gives the same symptoms. No changes were made just before the symptoms appearing, it ran fine for one tarmac event and then started missing at stage start ...

Also the Tarmac light is on permanently no matter which map is selected.

Good Morning All We run a Group A Evo IX, the car has a Gems diff controller, engine ECU and CD35 display. Last year the car started to miss fire in the tarmac map, It sounds like it's dropped a cylinder, but was fine in all the other maps. Last week it started doing the same in the locked map. Our ...