PFC and fuel cut?
04-08-05, 10:01 PM
#1
PFC and fuel cut?
Hey guys I'm helping out a fellow rotorhead and we can't figure out this problem.
The FD is fairly well modded but the problem is simple, at about 13psi it cuts out, doesn't matter what RPM. It feels EXACTLY like fuel cut.
Any settings on the PFC that need to be looked at?
Mods:
Upgraded twins
HKS ignition
Full exhaust
Intake
IC
PFC and enough fuel to make the whole thing work.
Engine harness is BRAND NEW, same problem before and after install.
The car runs great, if you modulate the throttle it is pretty fast as long as you keep it below 13psi.
Ideas?
The FD is fairly well modded but the problem is simple, at about 13psi it cuts out, doesn't matter what RPM. It feels EXACTLY like fuel cut.
Any settings on the PFC that need to be looked at?
Mods:
Upgraded twins
HKS ignition
Full exhaust
Intake
IC
PFC and enough fuel to make the whole thing work.
Engine harness is BRAND NEW, same problem before and after install.
The car runs great, if you modulate the throttle it is pretty fast as long as you keep it below 13psi.
Ideas?
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04-08-05, 11:14 PM
#8
RX-7 Bad Ass
iTrader: (55)
Yeah, I do know the PowerFC does have a fuel cut setting. I haven't messed with PFC's much, but I believe you set a boost level in the unit, and so many PSI past that level you'll get fuel cut.
Dale
Dale
04-08-05, 11:22 PM
#9
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Jeff, the PFC will fuel-cut if you go 0.25 kg/cm^3 over the "target" boost level. Even if you are running a separate boost controller, the "target" boost setting must be set to above what you want to run. I advice setting the "target" boost to the absolute maximum the car can handle, that way you still have a minimum of overboost protection but it won't interfere in hard driving.
The other potential issue is that the PFC is not configured properly to handle the 3-bar MAP sensor, look in the PFC forum, there's a few good write-ups by the PFC experts on how to do this.
The other potential issue is that the PFC is not configured properly to handle the 3-bar MAP sensor, look in the PFC forum, there's a few good write-ups by the PFC experts on how to do this.
04-08-05, 11:47 PM
#10
Originally Posted by rynberg
Jeff, the PFC will fuel-cut if you go 0.25 kg/cm^3 over the "target" boost level. Even if you are running a separate boost controller, the "target" boost setting must be set to above what you want to run. I advice setting the "target" boost to the absolute maximum the car can handle, that way you still have a minimum of overboost protection but it won't interfere in hard driving.
The other potential issue is that the PFC is not configured properly to handle the 3-bar MAP sensor, look in the PFC forum, there's a few good write-ups by the PFC experts on how to do this.
The other potential issue is that the PFC is not configured properly to handle the 3-bar MAP sensor, look in the PFC forum, there's a few good write-ups by the PFC experts on how to do this.
.
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