Sr20 running really rich

[landins13]

ok so here is the the setup:
fully built sr stock lobe cams,
555 hks injectors
n62 maf
fully apexi exhaust,
top mount manifold with 50 trim,
tial 38mm wastegate,
running 10 lbs
Nistune

basically my number 1 cylinder is completelly flooding out with fuel,i think i may have a faulty injector,

what psi should i be running with my adjustable fpr, how can i check the injector to make sure its pulsing properly.

i know im getting spark, my afr's are way to rich and after putting about 70 miles on the car yesterday out of no where it felt like the car was missing and i notived my afr's go richer then usual,

coil packs are good, ignitor is good, cas is good, plugs are brand new.

any help is appreciated

[landins13]

bump...........

[landins13]

is everyone on here really that unhelpful? when somebody has goofy wheels you all jump down their throat but when someone has a legit concern or question you cant give them help?

[djcobra]

FPR should be around 43 psi with the vacuum line disconnected.

I don't know much about NISTUNE, but with standalone ie, PowerFC you can adjust the injector settings, lag time etc...

Steve.

[0wn3r]

why are you running only 10lbs of boost? I would assume if one cylinder is flooding,it's not really a tune issue. you could send your injectors out to get flow tested or check o-rings first

[landins13]

why are you running only 10lbs of boost? I would assume if one cylinder is flooding,it's not really a tune issue. you could send your injectors out to get flow tested or check o-rings first


im running 10 psi for the moment because im still breaking the motor in, ive driven a total of 100 miles, once the motors in and the rings have seated then im going to up the boost and tune it again, im only looking for 350 wheel, and i should be able to get that easy with only 15 lbs or so

[landins13]

FPR should be around 43 psi with the vacuum line disconnected.

I don't know much about NISTUNE, but with standalone ie, PowerFC you can adjust the injector settings, lag time etc...

Steve.


yeah with nistune you can adjust puleswidth and whatnot, the gauge thats on my fpr is junk, when i adjust it my full sweep fuel press gauge says im at 50 psi but the guage on my fpr says im at 30 something, also why do i do it with the vac line off?

[djcobra]

yeah with nistune you can adjust puleswidth and whatnot, the gauge thats on my fpr is junk, when i adjust it my full sweep fuel press gauge says im at 50 psi but the guage on my fpr says im at 30 something, also why do i do it with the vac line off?

Every motor idles at a different RPM, so to keep things simple just remove the vaccum from the FPR and adjust the pressure to 43psi. Hook the vaccum line back to the FPR; it should read around 36psi. Blip on the throttle and you should see the pressure go up to 43psi. That's the way i do it, same goes for most of the guys on this forum.

Steve.