yesterday i was doing a pull on the freeway and the hose connecting my map sensor to the throttle body blew off. of course the car ran like **** after that i drove it about a mile like that thinking i expletiveed my motor (because i was already on my way to my shop and almost there) then when i realized what had happened i reconnected the line at it started up and ran just fine again. except since that happened, my car is acting like the wastegate isnt working. boost just skyrockets. (i realized this when my tires cut loose in 4th) and i cant figure out whats wrong all the vacuum lines are hooked up correctly none have holes they are all on snug i checked my boost controller and it is at the same setting. the only thing i can think that had happened was the map sensor flying off. any ideas on anything else it could be? maybe the diaphragm?

 

bump

 

is there a gasket for the map sensor to the tb? i cant remember

 

There should be an O ring. That may be missing. Although, where is the vacuum line for the wastegate connected? To the turbo or intake manifold?

 

it is turbo-boost controller-wastegate. im gonna go home and route it just from the turbo to the wastegate, and that should narrow down wether its the waste gate or the boost controller that is messed up.

 

you should try using zip ties on all your vacuum hoses to prevent that from happening again.

 

i do already that wasnt my question tho

 

just a suggestion

 

Sounds like ur hose flew off because of too high of pressure and the vacuum line not being secured onto the map sensor. I'd put a hose clamp on there and tighten it down to make sure it doesn't fly off again.