pfs box
09-18-01, 10:18 PM
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pfs box
I found a pfs box for sale, but it is the gold one. Isn't that the old one? I thought the purple one was the latest. How much should I pay?
09-19-01, 06:36 AM
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How much should you pay? How about $100..... then pay the $$ to EFI Systems to get it upgraded to the newer version.
DO NOT run the Gold box - it has trouble controlling boost and overboosting car be very expensive on an FD.....
DO NOT run the Gold box - it has trouble controlling boost and overboosting car be very expensive on an FD.....
09-20-01, 12:44 PM
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I JUST INSTALLED THE PFS PURPLE (LATEST ONE FROM PETER FARRELL) I JUST PUT IT YESTERDAY WITH THE COMMANDER. IM NOW RUNNING DP, CB AND PFS. THHE PFS CNTROLS BOOST WELL AT THE LOW AND MEDIUM SETTINGS. I HAVEN'T TESTED IT OUT AT THE HIGH LEVEL, AND DONT TO FOR A LIL WHILE UNTIL IM SURE I WONT DAMAGE ANYTING. ALTHOUGH I DO HEAR GOOD STUFF ABOUT THE PURPLE, ESPECIALLY IF YOU HAVE AN AUTO, BUT I HEAR THE GOLD ISN'T TO GOOD OF A COMPUTER.
09-21-01, 09:09 PM
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Please Help
I just bought a 93 rx and its got a down pipe, high flow cat, and pfs cat back, pfs purple computer, pfs medium ic, pfs cold air, and power pullys, well the thing is running rich to the point it makes me get headaches and ****. Also lots of pops, about everytime I left off the gas or back on the gas, or mostly at low rpms, sometimes at high rpms, Is this normal and I'm just going to have to live with it or is there something that can help get rid of the pops and fumes, I've had the o2 changed to a stock one and the plugs changed to 2-7's, and 2-9's, Is there something else that might be causing this. Could it be the ecu, when I unplug the pfs computer it rolls out puffs of black smoke, when I plug it back in with menu 100 idel set to -20, it seems to be better but still pops and has fumes all over the place. Does anyone have any sugestions.
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09-22-01, 11:43 AM
#10
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I don't know how to answer that one I just got the car 2 days ago. The boost gauge reads vacum when I'm just tooling around and then when i step on the gas it goes up in boost up to about 10 then off the gas and back to vacum. I'm not sure how to read the fuel pressure. Also i'm pretty sure there is no fuel pressure regulator. Just the stock one.
09-22-01, 12:34 PM
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PMS monitors boost/vacuum when in III (Roman numeral 3). If I remember correctly next to "MP:" (manifold pressure).
Since this was weaklink's thread maybe you should open a new one.
Since this was weaklink's thread maybe you should open a new one.
09-23-01, 05:24 PM
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Here are my gold box settings.
I am running PFS intercooler, DP, CB, cold air.
Main cat is stock.
Plugs are BUR9EQPs all the way around.
I usea profec B for boost control, so i don;t know anything about vent learn or boost control with the gold/purple box.
all timing settings are zero unless noted,
Max boost on menu 9 is set for 15 psi. and i keep the profec B at 14 psi. These numnbers are for the "high" setting on the PMC. I don;t have numbers for the low or medium cause i jsut keep it on high all the time, so i never bothered.
Also, my experienec has shown to make all adjustments to the box with the car OFF. Unlike what the manufacturer says about adjusting with the car running, i have found that really SCREWS things up and the car starts running like "****". Also, i have founf that it takes a little time for the ECU to get "adjusted" to new settings. So go slow, make some adjustments, drive around like that for a while, make more adjustments, etc....
idle: -28%
PT settings (menu 2)
setting 2200 4000 6000 7800
low -22% -22% -20% -12%
med -22% -20% -20% -10%
high -18% -14% -12% -4%
max boost settings (menu 6)
all 1psi settings are zero
max boost +6 +8 +18 +20
timing -2 -2 -4 -4
WOT menu - i don;t mess with it.see wade lanham's site for why. It's not necessary. )i think, unless you are using vent learn, which i am not.
My O2 readings are right at .84 with an occasional .86.
I assume that my high end boost is a little rich, but I need to get on a dyno with a wideband for exact tuning.
thats it - i now drive happily (except for the DAMN 3K hesitation) with NO backfiring or popping (even at high speed shifts)
I am running PFS intercooler, DP, CB, cold air.
Main cat is stock.
Plugs are BUR9EQPs all the way around.
I usea profec B for boost control, so i don;t know anything about vent learn or boost control with the gold/purple box.
all timing settings are zero unless noted,
Max boost on menu 9 is set for 15 psi. and i keep the profec B at 14 psi. These numnbers are for the "high" setting on the PMC. I don;t have numbers for the low or medium cause i jsut keep it on high all the time, so i never bothered.
Also, my experienec has shown to make all adjustments to the box with the car OFF. Unlike what the manufacturer says about adjusting with the car running, i have found that really SCREWS things up and the car starts running like "****". Also, i have founf that it takes a little time for the ECU to get "adjusted" to new settings. So go slow, make some adjustments, drive around like that for a while, make more adjustments, etc....
idle: -28%
PT settings (menu 2)
setting 2200 4000 6000 7800
low -22% -22% -20% -12%
med -22% -20% -20% -10%
high -18% -14% -12% -4%
max boost settings (menu 6)
all 1psi settings are zero
max boost +6 +8 +18 +20
timing -2 -2 -4 -4
WOT menu - i don;t mess with it.see wade lanham's site for why. It's not necessary. )i think, unless you are using vent learn, which i am not.
My O2 readings are right at .84 with an occasional .86.
I assume that my high end boost is a little rich, but I need to get on a dyno with a wideband for exact tuning.
thats it - i now drive happily (except for the DAMN 3K hesitation) with NO backfiring or popping (even at high speed shifts)
09-23-01, 06:07 PM
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PFS purple computer
Need300z, I have all of the PFS mods plus a Bonez SS downpipe and replacement cat. My car behaves the SAME way, I had all 9's for plugs but recently went back to 2 7's and 2 9's to pass emissions. The backfiring and popping is now less pronounced but is still there. I am going back to the 9's however because I am leery of detonation as I often run 12-15 Lbs. of boost (mid & high setting) and the colder plugs leave some unburned fuel which lubricates the housings and is the cuase of the backfiring and popping as the fuel gets burned further down the exhaust. My car is not is not my daily driver soI can live with this, I guess you can't have a modified car that sounds like a stock one.
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