got 1
got pulse when i turn acc on(line fill belive its 2-3 pulses),have pressure to fuel rail,out the return line,to fmu,to fpr,then on the return line out the fpr,no pressure.it all started though when a guy at the local speed shop said my fpr wuz hooked up wrong,so we flipped em around,that blew the hose off,so i put it back,then on my way home it started sputtering and leaning out bad???help please.
feul pressure ?
well you might not be getting enough fuel to breach the zero point, and ANY FUEL LEAK IS BAD!!!! DO NOT RUN YOUR CAR WITH A FUEL LEAK
once you get the leak fixed, try raising your static pressure, you need it so that when you go into Zero PSI you are rich, and you really need a wideband, if you don't have or can't get a wide band, take your car to a dyno, a FMU is not hard to tune, but if you tune it with a narrowband you will more then likely bend your rods and/or shatter pistons,
believe me, i have a block in my back yard that had a rod bend, piston shatter and the remaining rod punched a hole in the cylinder wall...
.....all because the previous owner tried to tune with a narrowband,
that was my parts car for my turbo project, im using all the same turbo parts, and fuel components, the only thing i changed was the boost controller, and i got a wideband, i'm running great with no problems
the difference between his car and mine was the tune
BTW he was running 5 PSI, i run 7 with a scramble boost of 10, and i never go above 11.5 A/F
also until you get a forged bottom end, don't go into boost at partial throttle, it's either full throttle or grandma, no in between
once you get the leak fixed, try raising your static pressure, you need it so that when you go into Zero PSI you are rich, and you really need a wideband, if you don't have or can't get a wide band, take your car to a dyno, a FMU is not hard to tune, but if you tune it with a narrowband you will more then likely bend your rods and/or shatter pistons,
believe me, i have a block in my back yard that had a rod bend, piston shatter and the remaining rod punched a hole in the cylinder wall...
.....all because the previous owner tried to tune with a narrowband,
that was my parts car for my turbo project, im using all the same turbo parts, and fuel components, the only thing i changed was the boost controller, and i got a wideband, i'm running great with no problems
the difference between his car and mine was the tune
BTW he was running 5 PSI, i run 7 with a scramble boost of 10, and i never go above 11.5 A/F
also until you get a forged bottom end, don't go into boost at partial throttle, it's either full throttle or grandma, no in between
i didn't know it was so much to boost,shoulda just 2.4 swapped it,but alas,i listened 2 the wrong people on the first build,they kept saying,"why are you listening to a bunch of idiots on the internet for",obviously,it was the other way around.couldn't i use the 00 and up sohc fuel rail,cause mine sucks at the junction.threads dont match up.i'll be getting the wideband shortly too.
did i do damage to the fuel pump when i hooked the fpr up backwards momenterally?staying lean even with no boost,sputtering at any change in the road,just got worse and worse in a matter of an hour.when i would first "acc" the key and watched fuel pressure gauge it would go up to around 90 or so each time,but after driving around and stuff,got home and did it again,this time no response in the fuel rail.