why am i geting boost surge??

[Mits3gts]

i installed the BR UICP and a EGR valve blockoff yesterday,and now i have a boost surge.it happens when i am boosting and let off the gas,the cars jerks forward.i checked for leaks and made sure everything was tight.i had to adjust my idle,but i guess thats common with a UICP install. why am i getting a surge like this? someone please help.....

on a side note the car pulls ALOT harder now and the blockoff cured my 'hot start' problem

 

[Mits3gts]

anyone?? please help i have no idea where to start..

 

[oldman]

Do you mean the boost surges after you let off the throttle? Do you actually see it on your boost gauge?

 

[Mits3gts]

maybe its not a boost surge,i dont see it on the gauge. after i let off the gas the car jerks.if i shift fast enough it wont do it,only does when i shift normal.it the same as when you vent your BOV...sorry if i was misleading...hopefully someone can help..i have been searching for hours i havent read anything wrong with blocking off your EGR as well with installing a UICP..

 

[oldman]

maybe its not a boost surge,i dont see it on the gauge. after i let off the gas the car jerks.if i shift fast enough it wont do it,only does when i shift normal.it the same as when you vent your BOV...sorry if i was misleading...hopefully someone can help..i have been searching for hours i havent read anything wrong with blocking off your EGR as well with installing a UICP..

Does it back fires? Soud like you have boost leak which would make your car run rich. Did you do a real boost leak test or just a visual one?

 

[espinelli]

If your venting back into the intake, then it sounds like your BOV may need to be readjusted, more than likely its probably to tight. Loosen upthe screw/nut, readjust and take the car for a drive. You should be fine. If the BOV is venting to the atmosphere, well thier's another problem.

 

[Mits3gts]

my car doesnt backfire.and one other thing i noticed,my a/f gauge doesnt fluctuate as much.it mostly stays on the rich side until i let off or if i'm lightly on the gas cruising...it used move back and forth alot more before. i'll try to do a boost leak tomorrow....
one other question. is it normal to hear the boost pressure ALOT with solid pipes? i dont see any loss in psi on my guage.was at 10 psi before and after.