viggen problems..

 
Old 09-17-2010, 08:24 AM
  #1  
Junior Member
Thread Starter
 
Join Date: Jan 2010
Posts: 5
Default viggen problems..

ok heres the deal, 99 viggen stage 3 nordic with dp,exh,forge wg,intercooler, new maf,dic,plugs,walbro 255, filter, regulator.. heres the symptoms.. driving, ill mat the gas it will boost up to 19-20 (normal for my carS TUNE) then drop all the way down to 10 then creep back up to 13-15.. it was running lean so i put in new fuel pump set regulator to 50 psi at idle. still does it... if i unplug the bcv it will boost stock boost per wastegate, but once plugged back in it does the same thing.. up and down.. what else can i do or change on this thing... i have no boost leaks checked with smoke tester and pressure.. im at a loss and want to just give up on the car. one thing i did notice is i bypassed the vlave on the firewall for the bypass valve.. i hoooked up per JZW recomdenation, but when boosting and i let off i notice my needle (autometer) jump from what ever it is at to appx 5 psi more then go back down.. im lost here..
ctviggen is offline  
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Richard Schmidt
PRIVATE For Sale / Trade Classifieds
0
10-27-2015 05:17 PM
Saabkid900T
PRIVATE For Sale / Trade Classifieds
0
09-12-2013 08:38 PM
Hvaclander
PRIVATE For Sale / Trade Classifieds
0
06-06-2013 07:51 PM
00SAABViggen
PRIVATE For Sale / Trade Classifieds
0
06-21-2012 06:34 PM
RobbieFrankish
PRIVATE For Sale / Trade Classifieds
3
01-17-2011 01:30 PM


Thread Tools
Search this Thread
Quick Reply: viggen problems..


Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.