Vaccum/Boost... question
 

MAF-T
FIC 550cc
safc2
14b

My car isn't seeing any pull during 1-15psi (WOT), but then kicks in at 18psi-20psi.. i have this weird loop in my idle after doing a run, almost dieing. I think i have a vaccum leak somewhere. Where are the major vaccum lines that would control idle, fuel, ect...? The 4 on the Intake manifold are all CAPPED. i'm also running really rich, i tried turning it down on the safc2 but nothing seems to work, it gets better, but not where it obviously should be... Another concern is that i might be seeing too much air? then again theres got to be a way of tuning a 14b correctly on a maf-t

Re: Vaccum/Boost... question
 

You will need a good wideband and a dyno would realy help, 2 hours dyno time is what we charge for afc/maft combos on basic setups per type of gas.

~John

Re: Vaccum/Boost... question
 

I could type it all out and explain to you exactly how to setup your MAF-T and S-AFCII to begin the tuning process, but honestly you'd be much better off just taking your car to a local shop and getting it dyno-tuned. This is especially a good idea since you really don't know what you're doing with DSM tuning yet. Pay for the hour or two of dyno-tuning and have your car run great everyday and you won't have anything to worry about. Good things to do before taking your car to get tuned are replace the spark plugs/wires, clean or replace your air filter, do a boost leak test (and fix any leaks), and get a tankful of good BP premium. Eliminate as many variables as possible and you'll save a lot of time/money on the tuning process.

Re: Vaccum/Boost... question
 

It would be great if everyone did this, we get so many cars in for tuning that are on E or worse, which is fine if you what a race gas tune.

~John

Re: Vaccum/Boost... question
 

If you think you have a vac leak, why don't you test for it? Kinda seems a little obvious to me...

Re: Vaccum/Boost... question
 

kracka let me get a shot at ur write up ;)

Re: Vaccum/Boost... question
 

+1. No way to find out without testing, but for the hell of it I'll list SOME possibilities out...

J-Pipe gasket
Intercooler fittings
Intercooler itself
BOV
TB shaft seals
BISS
Injector O-rings
Manifold vacuum lines
and the list goes on........