Boost loss when quick gear change

[jamie1989]

Sounds like map to me??
Unless its maybe a actuator problem?

When shifting in 2nd the change into 3rd @ 6500revs for example in 3rd gear with your map maybe its at 10-12 psi.

As with my R-Tech remap the peak is around 3000k I believe then holds boost but will drop towards redline,
Does that make sence?

Your wating a second and the revs drop below 3000k for example you floor it, it will peak again upto 20psi?

[Dave_IOW]

Mine did this bud and never got to the bottom of it, speedy gear change and would feel absolutely awful, deaccellerate for a second and all was well, i have no idea but can assure you, I also had exactly the same thing and know what your trying to get at!

[jamie1989]

Maybe not the remap then as Dave you run a R-Tech map dont you?

[Dave_IOW]

Yeah, never got to the bottom of it, engine will be in mk2 and running soon, but should have a new map on by then.

Really have NO idea what caused it though, thought might be either 007 spring or actuator spring not having time to shut, but think that was just clutching at straws..

Sorry can't help bud, but would be interested to know if you fix it..

[Scott D]

I've had this happen on a few occasions  - quick gear change when giving it some then almost feels like gone into limp mode, off the throttle and back on boosts as normal.

Had a duff MAP sensor which eventually completely failed and registered fault codes, replaced and not had a problem since.

[Dave_IOW]

Not sure what engine OP has, but I have an AGU so no MAP sensor   

Exactly same symptoms though