Running Apexi Avcr Alongside Pfc

[045HOW]

My new car has a PFC with a shit tune right now as the tune was done on it before a front facing plenum was added. I have my Apexi AVCR out of my first skyline and am wanting to get it installed alongside the PFC.

PFC already controls boost and my thought is ill be using the PFC solonoid with the AVCR if i can connect the AVCR loom to it as i don't trust the old solenoid as the boost always rose on my old car(Could have been actuator, unsure. but whatever.).

Just wondering if this will be all normal and no conflicts will arise. Car will go in for a tune sometime January.

Cheers

[DVS JEZ]

Honestly Sell the avcr and enjoy the cash. Especially if the power fc already controls the boost.

[045HOW]

Honestly Sell the avcr and enjoy the cash. Especially if the power fc already controls the boost.

Oh im not wanting to utilize the AVCR just for its boost control(it would just be silly to have an Apexi Actuator Valve Controller and not use it for boost settings lol). MUCH better for displaying boost,revs,injector duty and speed while driving with a brighter screen and all the other features it provides. Would rather keep the PFC controller hidden away anyway as the wrong police officers are familiar with what its for.

[paulr33]

both will work fine

they are two seperate systems

and wont know each other exists when running them together

just make sure only one device controls the solenoid and both get the same map sensor signal

the powerfc boost kit and the avc-r use the same parts

so there are no issues theres

if you enable boost for the powerfc it has boost pressure correction as well (good)

my advice would be to have the AVC-R control boost and the solenoid

but also feed the powerfc the map sensor signal at the same time

this will enable boost correction in the maps (you can leave ETC, FUNCTION SELECT, BOOST set to OFF and it still displays boost)

you will need to buy the PFC boost kit loom (the 3 pin loom) so that you can wire in the map sensor to the PFC

the loom is bout $30 from nengun.com

[045HOW]

both will work fine

they are two seperate systems

and wont know each other exists when running them together

just make sure only one device controls the solenoid and both get the same map sensor signal

the powerfc boost kit and the avc-r use the same parts

so there are no issues theres

if you enable boost for the powerfc it has boost pressure correction as well (good)

my advice would be to have the AVC-R control boost and the solenoid

but also feed the powerfc the map sensor signal at the same time

this will enable boost correction in the maps (you can leave ETC, FUNCTION SELECT, BOOST set to OFF and it still displays boost)

you will need to buy the PFC boost kit loom (the 3 pin loom) so that you can wire in the map sensor to the PFC

the loom is bout $30 from nengun.com

Its just a standard PFC, not a D-JETRO. Already has the 3 pin loom controlling the solenoid in the current setup.

[paulr33]

that makes no sense

djetro has nothing to do with displaying boost or not, or the 3 pin loom

the 3 pin white socket on the side of every powerfc is the boost control kit loom, for the map sensor

the 5 pin white socket on the side of every powerfc is the boost control kit loom, for the map sensor and solenoid

cars with 3 pin socket have an existing ECU controlled solenoid, so apexi re-use that wiring on the std loom

if you have the 3 pin loom then that should run the map sensor, not the solenoid

the solenoid runs of pin 25 (assuming ECR33/BCNR33/BNR34 etc) that has boost control solenoid in pin 25 (i think most skylines are like this)

[045HOW]

I was under the idea that a Map Sensor was not an AFM.

Maybe it is 5 pin. It runs boost from the the PFC and its via an Apexi Solenoid so wouldn't that suggest its running 5 pin? Will check it out this arvo when injectors,clutch and gearbox go in.

[paulr33]

from the top

3 pin powerfc (any version, djetro, ljetro, pro, ap engineering) is for car that does have an ECU controlled boost solenoid from factory

ie ECR33 has dual staged boost where the ECU switches ground on pin 25 to "run" the stock solenoid

the apexi kit gives you a new solenoid to use (which runs on pin 25) and a map sensor loom, and map sensor. the map sensor loom connects to the 3 pin socket

5 pin powerfc (any version, djetro, ljetro, pro, ap engineering) is for car that does NOT have an ECU controlled boost solenoid from factory

ie EJ20 (not sure if it does or not sorry)

where it does not have an ECU controlled factory boost solenoid and boost is controlled by wastegate spring

the apexi kit gives you a new solenoid to use, a solenoid loom, a map sensor loom and a map sensor. the solenoid loom connects to the 5 pin socket and the map sensor loom connects into the solenoid loom.

the 3 pins are ground, power and signal (map sensor signal)

the 5 pins are ground, power and signal (for the map sensor) and power, ground (for the solenoid)

[SargeRX8]

Or sell the apexi boost controller and get your self a power fc hand controller and a nice boost gauge.

[045HOW]

from the top

3 pin powerfc (any version, djetro, ljetro, pro, ap engineering) is for car that does have an ECU controlled boost solenoid from factory

ie ECR33 has dual staged boost where the ECU switches ground on pin 25 to "run" the stock solenoid

the apexi kit gives you a new solenoid to use (which runs on pin 25) and a map sensor loom, and map sensor. the map sensor loom connects to the 3 pin socket

5 pin powerfc (any version, djetro, ljetro, pro, ap engineering) is for car that does NOT have an ECU controlled boost solenoid from factory

ie EJ20 (not sure if it does or not sorry)

where it does not have an ECU controlled factory boost solenoid and boost is controlled by wastegate spring

the apexi kit gives you a new solenoid to use, a solenoid loom, a map sensor loom and a map sensor. the solenoid loom connects to the 5 pin socket and the map sensor loom connects into the solenoid loom.

the 3 pins are ground, power and signal (map sensor signal)

the 5 pins are ground, power and signal (for the map sensor) and power, ground (for the solenoid)

Alrighty gotya now. 3pin white loom is already installed.

Excuse my nubness good sir...

Or sell the apexi boost controller and get your self a power fc hand controller and a nice boost gauge.

Or read the thread and know i already have the controller but avcr is much better for displaying what i want to see while driving and id rather keep evidence of an aftermarket ecu hidden.

[GTR_JOEY]

Works fine mate. I got a PFC running with an AVCR for 6 months before my engine let go

[paulr33]

no need to be sorry

part of the learning process

ive been using the pfc boost kit for quiet a while now on stock turbo and it works well

it also enables boost correction on the maps

but i dont fully understand what it does and how

looking at datalogit it looks like it's able to use an alternate boost target with cold water temp

ie boost max 0.50kgcm2 when water is 50deg and slowly ramp to target as water temp goes up, but havent played around enough