Need a little help!!!!!!!!!!!!

RC51TMAXX · Jun 1, 2010

I need a little help with my stang I'm getting a lot of raw fuel smell out of my exhaust maybe FPR going bad? I don't know what the pressure is at this time can some one tell me what it is stock pressure is. I have a BBK AFPR I want to put on but don't know what to set it at.

List of mods
bbk 70mm tb
bbk cai
bbk maf for 24lbs inj
24lbs inj
ported and plolished e7 heads(don't ask done when I got the car)
e303 cam
msd 6al and coil
fuel pump stock that I know of
equal leanth headers
o/r h-pipe
edelbrock rpm upper and lower

RC51TMAXX · Jun 1, 2010

Anyone?

Rice_slayer · Jun 1, 2010

Tune done on the car? That cam is more than likely the cause, most cars that are cam'd have that issue, mine sure does lol.

94kingcbra · Jun 2, 2010

Check plugs, is one fouled? MIL light on? Idle surge? Check the vaccuum line to the fuel pressure regulator, if that line is bad then your fpr will go to max pressure.

Rice_slayer said:
Tune done on the car? That cam is more than likely the cause, most cars that are cam'd have that issue, mine sure does lol.

Yep, you might need a tuner to look at it, and tune it for optimum performance and drivability. He would be able to set fuel pressure, timing, will verify your MAF counts are right. You probably are running rich because the MAF table is off, but check basics before you take it to someone. If you don't have a tune, get one. Good Luck!

ivan12 · Jun 2, 2010

Is the smell recent? I hated the smell when I had no cats

Addermk2 · Jun 2, 2010

FP should be at 39PSI with the vac line off. you should get a tune. and your fuel injector timing needs to be retarded slightly.

MustangMoser · Jun 2, 2010

Probly needs a tune unless this just started to happen. my car smelled rich as h*** with my cam, had to change injector timing to get it right.

RC51TMAXX · Jun 2, 2010

Yes the car needs a tune....thanks for the info on the fpr. I have another question I have to get my car inspected and I have no cats and I know it will fail do they sell high flow h pipe or xpipe that won't lose a lot of power?