[Mk2] [Turbo] Apexi PFC AP Engineering

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**BETSY**
Posts: 101
Joined: Sat Mar 26, 2005 7:03 pm
Location: Sussex

[Mk2] [Turbo] Apexi PFC AP Engineering

Post by **BETSY** »

After a bit of info regarding a Power FC, AP Engineering, unit.
It has a silver sticker on the back of the unit saying AP Engineering, PFC SW20 A0056.

interested to know what revision and year this is designed for?
It also came with a makeshift harness, crossing over some wires.

Any info on the unit would be very much appreciated!
**BETSY**
Posts: 101
Joined: Sat Mar 26, 2005 7:03 pm
Location: Sussex

Re: [Mk2] [Turbo] Apexi PFC AP Engineering

Post by **BETSY** »

Worth noting in 'ETC' and Version number it shows

3S-GTE3
Power FC VER 3.20
FC Commander2
VER 8.13
Race Idiot
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Location: Hertfordshire

Re: [Mk2] [Turbo] Apexi PFC AP Engineering

Post by Race Idiot »

AP Engineering ones are pretty rare, they are meant to be for rev2 cars iirc.

If you open it up it should have a daughterboard, which the normal rev3+ pfcs dont. I bought a pfc which was supposedly meant to be an AP one, but it turned out it was just a normal one as it didnt have the daughterboard.
**BETSY**
Posts: 101
Joined: Sat Mar 26, 2005 7:03 pm
Location: Sussex

Re: [Mk2] [Turbo] Apexi PFC AP Engineering

Post by **BETSY** »

Thanks for the reply.

AP Engineering PFC's allow you to run with out the AFM?
any other differences that your aware of?

Inside of this unit is a small plug in board with 'AP Engineering' written on it.
doesn't look like there are any components on the board though?
djpkins
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Re: [Mk2] [Turbo] Apexi PFC AP Engineering

Post by djpkins »

a pic would be usefull old chap.
**BETSY**
Posts: 101
Joined: Sat Mar 26, 2005 7:03 pm
Location: Sussex

Re: [Mk2] [Turbo] Apexi PFC AP Engineering

Post by **BETSY** »

As requested.

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Pim Volt
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Last edited by **BETSY** on Sun Feb 05, 2012 3:18 pm, edited 2 times in total.
Kongaroo
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Re: [Mk2] [Turbo] Apexi PFC AP Engineering

Post by Kongaroo »

Usually the AP engineering PFCs will be for rev 2 turbo cars.

I have a rev 2 ECU that I bought several years back. Externally it looks like yours but mine didn't come with the harness and the stock ECU plugs fit directly to the ECU as per the stock ECU.

Internally there is an AP engineering repinning board which I believe does the conversion from it being rev 3 to rev 2.

I would be interested in seeing a photo of the inside of your AP engineering PFC if you get a moment to take off the lid.

Here's mine:



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The 2 Japanese characters written on the stickers mean 'Middle Period' in Chinese (so should have a similar meaning in Japanese too) which basically should point to Rev 2 which was the 'middle' of the 3 ECU periods.

I'm curious as to why you have a whole repinning harness externally as well. Do you know what car the ECU came off? I know some people have successfully used the MR2 PFCs on other cars like Starlets via a repinning harness like yours.

Some American vendors do such a harness to use the rev 3 PFCs on their US turbo cars as well.
**BETSY**
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Joined: Sat Mar 26, 2005 7:03 pm
Location: Sussex

Re: [Mk2] [Turbo] Apexi PFC AP Engineering

Post by **BETSY** »

Hi, looks the very same as mine!

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I'm told it was removed from a st205 Gt-Four.
So does the small board get removed to allow it to run on another rev/gt4 model altering the pin outs?
**BETSY**
Posts: 101
Joined: Sat Mar 26, 2005 7:03 pm
Location: Sussex

Re: [Mk2] [Turbo] Apexi PFC AP Engineering

Post by **BETSY** »

Sorry re-read your post, the small removal board makes this work for a rev2 or rev 3

?
Kongaroo
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Re: [Mk2] [Turbo] Apexi PFC AP Engineering

Post by Kongaroo »

If you are reliably informed re: it coming off an ST205 then I would guess that the ECU is likely to be for a rev 2 turbo with the harness repinning it to work on the ST205.

Effectively this means that your harness should allow you to run the PFC on a rev 3 turbo car (and probably a rev 2 without the harness assuming all the repinning changes were made via the external harness) as the ST205 ECU is interchangeable with the rev 3 turbo one apart from a genuine ST205 ECU will be expecting an extra signal from the chargecooler pump system.

BTW one thing I noticed is your repinning board is slightly different to mine as there do not seem to be any cross connections on the board on yours while there are several on mine. At some point I will stick mine on a rev 2 turbo and see if everything performs as i should (although have been saying that for years now :lol: )
**BETSY**
Posts: 101
Joined: Sat Mar 26, 2005 7:03 pm
Location: Sussex

Re: [Mk2] [Turbo] Apexi PFC AP Engineering

Post by **BETSY** »

It's a strange one as I run a st165 running a rev3 power fc and if I plug this pfc in direct the car will run but if I use the patch lead the car won't even start?
I will try it again tomorrow and plan on plugging it into a st185 Rc tomorrow, snow permitting!?
Maybe worth unplugging the small board inside as well?
Kongaroo
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Re: [Mk2] [Turbo] Apexi PFC AP Engineering

Post by Kongaroo »

I'm surprised you can use a rev 3 power FC direct to your ST165. Are you sure you don't have some sort of repinning harness already in place?

I don't think just removing the board will work as a way to get the rev 2 AP engineering ECUs to work on a rev 3 (although I was told this might work by someone on the American forum quite a while back).

I think the rev 3 power FC will have its own pin board inside. If you have a rev 3 power FC already can you open it up and take a photo of what's inside as I'm curious as to whether there is a 'rev 3' pin board in there as I suspect.

I have a rev 3 PFC pro ECU but the car is at SBITS for another week so I can't open it up to take a look right now.
Kongaroo
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Joined: Wed Aug 31, 2005 8:26 am

Re: [Mk2] [Turbo] Apexi PFC AP Engineering

Post by Kongaroo »

PS - a couple of years ago I did try removing the AP board and plugging the ecu into the nearest available stock rev 3 turbo as a test but the car would not start - it cranked but wouldn't catch and was over fueling enough that the spark plugs needed to have the fuel burnt off. (thanks Peter at SBITS for letting me use your car as a guinea pig at the time - ah what a guy :lol: )
**BETSY**
Posts: 101
Joined: Sat Mar 26, 2005 7:03 pm
Location: Sussex

Re: [Mk2] [Turbo] Apexi PFC AP Engineering

Post by **BETSY** »

I should of elaborated a little more, apologies.
I have a patch lead converting my st165 loom to st205 plugs, that as well as 540cc inj, it, mat, igniter etc.

I did notice when I plugged the sw20 pfc into my car with the patch lead that came with it I didnt hear the fuel pump prime...
Where as with out the lead and my rev3 pfc it does...

I will get some pics of the inside of mine tomorrow for sure.

Seems strange how a pfc designed to run with a AFM can be used on a car with a map sensor, same type of signal?
**BETSY**
Posts: 101
Joined: Sat Mar 26, 2005 7:03 pm
Location: Sussex

Re: [Mk2] [Turbo] Apexi PFC AP Engineering

Post by **BETSY** »

Just for kicks

St165 to st205 patch lead.
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Use to run a Mr2 rev 3 ecu
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Kongaroo
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Joined: Wed Aug 31, 2005 8:26 am

Re: [Mk2] [Turbo] Apexi PFC AP Engineering

Post by Kongaroo »

Nice work - look forward to seeing the rev 3 pfc innards :thumleft:
al/c
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Location: near a shell station

ecu

Post by al/c »

i,ve been running the ap engineering version for years now, it,s rev2 specific and allows you to run it the same as a rev3. so you can get rid of the afm and just replace it with a sensor. great bit of kit when you upgade your turbo and fuel system and bloody rare nowaday,s :thumleft:
Kongaroo
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Joined: Wed Aug 31, 2005 8:26 am

Re: [Mk2] [Turbo] Apexi PFC AP Engineering

Post by Kongaroo »

Hi mate - can you tell me if the AP engineering PFC lets you run the car using the AFM if you want to? I know there is the option to add the MAP sensor with it but is it true that it is Plug and play with the standard rev 2 AFM as well?
jimGTS
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Re: [Mk2] [Turbo] Apexi PFC AP Engineering

Post by jimGTS »

Afaik there are 2 map sensor options on the ap version.
One to run with the afm, and one to run like a rev3. (believe you still need to hook up ait and mat sensor on the rev3 option).

I used to own an ap, turns out was busted, I converted to the rev3 sensors before trying it with the afm tho.
**BETSY**
Posts: 101
Joined: Sat Mar 26, 2005 7:03 pm
Location: Sussex

Re: [Mk2] [Turbo] Apexi PFC AP Engineering

Post by **BETSY** »

My rev3 PFC.

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Pim volt
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