I just got my 05 back from a regular service and now it seems that at 6k the boost falls further down to 10psi it never use to do this before. The car is completly stock except for a hallman set at 20psi. i know that there are alot of gurus out there so if you can give mee some input it would help out alot

 

please help me out guys

 

If you installed the controller yourself, check all of your hoses again and make sure the stock solenoid is capped off. Did you have 20 psi before the service?

 

ditto.

 

yeah i did and it would do the regular taper about 2-3 psi by redline

 

MBC with taper?? I thought that the whole purpose of the MBC was to eliminate that/as well as give you control of boost settings.

 

ill go check the lines again but im pretty sure that they are on because the service was only for an oil change and i did have the lines capped

 

i thought so too but the mitsu ecu some how still does its thing

 

yeah i did. help

 

it was fine before the service

 

Ok i checked my lines, went for a test drive and got a distinctive pop. I now believe that it is an IC piping problem. Its raining now so ill get back to you guys later. Thanks for the help guys ill keep you posted.

 

Get a reflash with it.

 

It was a loose ic pipe. so the car pulls ok now but i do plan to get a flash.
Thanks again guys i appreciated all the responses.

 

hose def. i had same prob. went to auto zone bought all new lines and boosting 24psi....i have to change every few months tho for some reason