Quote Originally Posted by DeaneMsport_180sx View Post
and i dont have a boost controler it was just set to 1.1 bar when i got it mapped on a motec....
thanks for the help btw
how long ago was the car mapped? if it was recently you should ask whoever mapped it to have a look at the issue. although im sure he/she would have noticed such a large spike. he/she should have recommended a boost controller. them actuators sometimes give trouble.

check ur pipe on the actuator that its ok. like jh says a good road spin will tell alot more. if thats possible.

alternatively run 2 bar boost. wohoo