paul21uk Posted April 15, 2013 Share Posted April 15, 2013 Alright guys na-1jz single non vvti swap complete I'm full decat 3" system using a apexi safc and a aem wideband at moment.. When I hit low boost 8 psi, things are spot on until I up it to .8 bar which is when I get a vilant "bbrrrrrrrr" noise it thens pull through and does it again and again I'm just wondering if any of you guys have any ideas...... Please help. Cheers Link to comment Share on other sites More sharing options...
listy Posted April 15, 2013 Share Posted April 15, 2013 I had a similar issue with my TT. Turned out the FMIC piping was vibrating against the metal where it went through the wing. Link to comment Share on other sites More sharing options...
paul21uk Posted April 15, 2013 Author Share Posted April 15, 2013 Nah this is actually boost related as when I hit the brrrrr sound I lean out sometimes it pops wondering if it would be spark related or its pulling timing I really don't know but I can't get past .81 bar Link to comment Share on other sites More sharing options...
paul21uk Posted April 15, 2013 Author Share Posted April 15, 2013 Anyone?? Link to comment Share on other sites More sharing options...
Swampy442 Posted April 15, 2013 Share Posted April 15, 2013 Personally Id not drive it until its sorted! What AFRs do you get at the time? Whats your fuelling set up? Link to comment Share on other sites More sharing options...
paul21uk Posted April 16, 2013 Author Share Posted April 16, 2013 Running low 10s afr on boost its boost dependant tho 2weeks ago I was hitting .85bar without a problem Its stock at the moment ie 370 injectors j spec fuel pump Link to comment Share on other sites More sharing options...
Swampy442 Posted April 16, 2013 Share Posted April 16, 2013 So youre on low 10s when its missfiring/detonating? Link to comment Share on other sites More sharing options...
paul21uk Posted May 15, 2013 Author Share Posted May 15, 2013 All sorted now turned out to be my coil packs collapsing on secondary ignition Link to comment Share on other sites More sharing options...
Recommended Posts
Please sign in to comment
You will be able to leave a comment after signing in
Sign In Now