fuel cut at boost.

[ak47mopar]

for the last couple weeks my car has been runnin a lil diffrent than normal. it useually ran like 15:1 cruisein down the highway at 60 and the it started runnin around 14 or 14.5. now lastnight it started and i was able to drive it then after and intersection when i went to get back up to speed it just started spittin and sputterin as soon as the car acted like it wanted to boost. no matter how far i had my foot in to the throttle my wideband said it was running10:1. it took me over a half a tank of fuel to make it the 30 miles home.

so does anybody have any sugestions on where to start and what to start looking for.

 

[LiquidX]

Do you have any CELs? Any knocking noises when trying to drive. Does the car feel much much slower that what it ususally is (not including boost). Front O2 sesor plugged in and/or changed recently?

Also what kahrtley said. Have you done any boost leak tests? http://www.dsmtuners.com/forums/new...se-troubleshoot-boost-leak-tester-merged.html

 

[khartley]

Maybe a pretty nasty boost leak? That would throw your air/fuel ratio off pretty bad.