car cuts out at 15psi

[brett5]

as title its rather anoyying when i put my foot down in my t5 auto it gets to 15psi and cuts out for a second until boost dropsthen carries on driving, any suggextions please?

[M-R-P]

If you have an MBC fitted, turn it down a bit. Presumeing you have a non-mapped ecu, you'll be hitting boots-cut, the ecu's way of protecting the engine.

If you don't have an MBC, there'll probably be a leak in the vac system somewhere, preventing the wastegate actuator working properly.

[brett5]

yeah i have a boost tap fitted it doesnt always do it its weird lol ill keep turning it down little by little and see how i go thank you very much :)

[M-R-P]

On a standard ecu, 15psi is about where you'll get boost cut so it all makes sense :) (try not to leave teeth-marks in the steering wheel lol)

[brett5]

i must admit i have nearly headbutted the steering wheel racing a db9 lol

[theflyingbrick]

ahhh the old boost cut syndrome,your lucky you get to 15 i used to headbutt the steering wheel at 13psi lol

[brett5]

lol

[Kingsford G]

Get it mapped,only £150 and u can run up to 20 psi or even 25psi and have a nice curved rods unlike others lol

[Dangerous Dave]

boots-cut

pmsl :P

[M-R-P]

pmsl :P

Yeah, that's where large drug-stores stop your car going fast :D

[V70 Graham]

Yeah, that's where large drug-stores stop your car going fast :D

:lol: