I was on my way home this evening from the Silverstone weekend (what a great day) after seeing family afterwards for a few days, and for about five minutes my car was only making 10psi of boost when it is usually 15psi peaking up to 17psi before coming down to 15. It's stage 1 with a T34 Hybrid and the usual sort of other mods around the engine bay. I checked the boost pipes and they were fine, so no leaks. But the turbo just didnt want to spin up in a hurry. I thought it was what people call, surdging. But once I pulled over and gave the car a good few rev's from the throttle linkage it sounded like it was spinning up ok as it were. I did see 1 spark come from the back of the turbo where it joins to the down pipe when i let the revs come down. But anyway off I went and the boost was fine for the rest of the journey.

Was my ECU having a hick-up or something else?

Cheers Guy's