I'm having some problems with the car at high revs - 4500 and above. I did a few logs and have screenshots below. I never lifted my foot during the logs, yet it seems the throttle angle changes. It sounds and feels very much like a misfire, but I have new coilpacks, and plugs, so not sure what else could cause a misfire. No fault codes Further to this, I've had a mapper look at it, and he thinks the problem is with requested lambda vs actual lambda. He suggested my fuel pump or injectors might not be up to the task. Does that sound right?