has anyone had any problems with their map sensor after going turbo? car sometimes lags then surges, ocassional misfire. sensor tests good, looking for suggestions. i am running a 93 hatch with a second gen b16a with a revhard turbo kit @ 5psi.

 

do you have a check vavle on it?

 

yes
the way it is supossed to be set up with the turbo kit, is three check valves in the vacuum line from the manifold to the map sensor.

 

get a missing link

 

There is a part called "the missing link" that u can get from inlinefour.com that's supposed to take care of that.