I have a 1996 S70 T5 that is overboosting very briefly on gearchanges to 15psi. The rest of the time it runs around 10-11psi which, I believe, is standard.
The overboost is only for a half second and it quickly settles back to 10-11psi. My questions are:
1) How big a problem is this? Is my engine likely to grenade?
2) If this is a problem that needs fixing, where do I start?
Thanks
