Hello.
I got a strange phenomenon today when driving my XB9S on the highway, i had been driving for about 80mph in 20 minutes when the engine suddenly misfired when i gave full throttle and the engine-light flickered. I did press in the clutch and the engine reved nice. And when driving off the highway was everything ok. I know the plug wires rubber caps are cracked, can it be the reason? But i did only happen on the highway.
I did check the system with ECMspy and did notice the AFV value had went from 115 to 135. The misfire did happen a few km from home so it might have gone high and not got back to normal value.
There was no fault codes.
Any ideas? Can it be the very hot weather we have today that affect? About 30 degrees C.