i believe it's a -6an fitting for the service port on the fuel rail, am i correct? and secondly where can i find a an fitting will they have this at a hardware store or would i need a performance shop?

I edited to the wiki!

If it's on the end of the fuel rail, it's -4an and you can get the fittings at a hardware store or plumbing type store. If you can't find on, go to anplumbing.com (i think that's the name) or summitracing.com has them as well.

99GS MT | Star Stage 2 | GC coilovers | HurriganeGS tie bars | Tokico Illuminas | 17x7 Enkei RS5 | Baer track brakes |+

I've never been able to get them at hardware or plumbing stores. Mkerly has the size right; it's -04 AN. I believe that AN has a 37 degree flare and SAE is 45 degree flare. Alot of hardware stores carry SAE flares. Check out summit for the AN fitting or get a local shop to order it. A -04 female to 1/8 NPT male and NPT coupler will work nicely for your fuel pressure gauge. Your fuel pressure gauge was working properly all along. I forgot that your stock FPR was still operational and the FMU is just a riser. I won't go into details, but we put the sensor in the wrong place to work at anything less than 0 boost. It should be in the fuel rail.


Corbin

'95 ESI-T
HRC+FMIC+ETC...

Corbin
'97 GSX dressed like a '95 ESi

I honestly don't know which flare I bought (it's the correct one though), but I found mine at a local industrial hydraulic store.
To find one in your area, go here
http://www.parker.com/distloc/english/search-fcg.asp
click on brass products and find your area and it will list if there are any stores.

Matt

99GS MT | Star Stage 2 | GC coilovers | HurriganeGS tie bars | Tokico Illuminas | 17x7 Enkei RS5 | Baer track brakes |+