Jump to content
SAU Community

Recommended Posts

Yeah my 32 GTR with PFC does this also ! It has version 8.04A. Seems same as others- could happen a few times a day, hot or cold, mostly light throttle. I was told was prob a AFM problem but when i run it with the stock nissan ECU the problem stops so that rules that out.

  • Replies 212
  • Created
  • Last Reply

Top Posters In This Topic

If this info help, my FC Djettro with map sensors does it too.

It does it once in a couple of hundred-thousand km at very light load, it is unpredictable and is certainly not reproducible. All monitoring parameters are all safe. Go figure! I guess the GTR god want to be driven fast all the time :D

have added this issue as a work in progress to the FAQ

also it should be noted PFC's with NEC Processor 78P3 CPU are NOT reflashable

78p3.jpg

only newer, ie: pre 2000ish are reflashable, they have a 78F4 processor and an onboard connector for reflashing

78f4.jpg

dont recall this ever happening to mine. 32 GTR, PFC, 8.04a.

interesting - so what other mods do you have ?

I'm still fishing for some commonality some where !!

Also interesting to hear that even the D-Jetro PFC has this problem

my bad. yeah the newer models are ok

im pretty sure my ecr33 pFC isnt reflashable

and it was fairly new, 2002ish

but still based on the old powerfc chipset

this is my ECR33 from aroud 2002ish

http://members.dodo.com.au/paul/docs/power...werfc-board.jpg

it has the nec 78p3 processor

my software is 8.04a and R32 GTR

I think I see a pattern forming here >_<

OK

1: how do I check if my PFC can be upgraded (remove and inspect ?)

2: what is the current (newest) version of the software (should I be down revving ?)

3: where in Sunny Brisvegas would I go to get it done

1. if you pop the cover off youll see the NEC 78P3 processor, it will be part of the model number, it will be the biggest chip on the board. take a pic for recon purposes and post up or send to us please >_<

if its the 78P3 it cant be reflashed, as its a burn once chip

2. newest version not sure, i guess anyone with a recent Rb26 PFC, purchased in the last few months is likely to have the latest code on it

3. i know geniunine apexi dealers can fix/warranty and possibly flash/upgrade your PFC to a newer version but i believe this is only on $1500 PFC's purchased from like MYC or an aus dealer

ask myc.com.au how much to get a new PFC code installed on it (if they'll let you that is). you may find it cheaper and easier to buy a new PFC from nengun. but that guarantee's nothing at all.

the key to this i guess would be to find someone who has an RB26 32/33 ECU that doesn't have this problem, then look at what version they have. then ask nicely if you can swap FC's with them for a week and see if the bug follow's the FC with the bad version. if so then you'll know what the good version FC to go for is. sell your known bad version on ebay and look for a specific version FC

Ill pull the lid off mine tommorow and report what chip it is. Mine was in the car when i bought it, but they buy payed 1500 for just the power fc from PVP imports in SA, so i assume it could be a legit "aussie delivered" one maby.

Well - I got mine from Nengun (paid $950 for it)

So I KNOW mine will not be covered in Aus

I'd be happy to pay for the upgrade if

  • I knew it fixed the problem
  • it was not too expensive
  • did not require a full retune (dyno)

Seems I chimed in late on this one, but I have had the same issue on 3 PFC's...

One was in a 33 GTST & I have had a standard PFC & DJetro in my 32 GTR & they all did it.

Having said that it is so infrequent that I'm really not bothered about it.

I've been through 3 (well 4 if you count the Mines modded) ECUs on my R.

First version was a "3.08" version that had the intermittent miss at cruise loads.

Second was a Wolf 4 (MAP sensors) that had NO miss.

Third is the D-Jetro PFC and the "cruise miss" returned. Now the strange thing is that I recently (before buggering off overseas again) installed an HKS "Twin Power" CDI unit and the miss is gone for good!

I covered a good 1,000 kms with it installed and it's definately not a "placebo effect"

My gut feeling is that the miss is ignition related.

Edited by Gav
I've been through 3 (well 4 if you count the Mines modded) ECUs on my R.

First version was a "3.08" version that had the intermittent miss at cruise loads.

Second was a Wolf 4 (MAP sensors) that had NO miss.

Third is the D-Jetro PFC and the "cruise miss" returned. Now the strange thing is that I recently (before buggering off overseas again) installed an HKS "Twin Power" CDI unit and the miss is gone for good!

I covered a good 1,000 kms with it installed and it's definately not a "placebo effect"

My gut feeling is that the miss is ignition related.

I agree - it just feels like that sort of miss

what's included in the CDI kit ?

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now



  • Similar Content

  • Latest Posts

    • Yes, I know🙄 but the sequential is not in my budget... don't want to reduce power neither, so looks like I'm stuck in the rabbit hole🤣
    • You’ll be very upset when you bust that too not to mention the gearing totally sucks. Don’t do it.
    • Is the panel filter one that is oiled? Have you ever cleaned or touched the AFM?
    • So.... the K&N air box thingo was too big, ended up gifting it to a mate, well, by gifting it he actually supplied food and beer at the pub,  which was nice, as it will not sit on a shelf in the garage for the next 10 years I did trim up some of the existing stuff to neaten it all up and gave it some wrinkle paint, unfortunately it currently has a used and abused mish mash of different types of hose clamps, 4 big fat T bolt type (shit), and a few normal clamps of vairing sizes and brands, but..... only until the 6 constant tension black worm clamps that I ordered from EFI solutions turn up next week Currently the current hose clamps are triggering me hard, LOL Is this the final version, probably not, I really want just 2 silicone pieces, a straight bit of silicone from the filter to the MAF is easy and will happen as soon as I head into Just Jap tomorrow, the problematic part is a 30° silicone bend from the MAF to the TB that I can connect the engine breather from the head, I found that there are bulk head fittings for boat bilge pumps that should work, but until I can get a 30° silicone bend the alloy pipe, and the 11ty thousand hose clamps, are there for the foreseeable future 4 hose clamps are golden, 6 are grudgingly acceptable, the 8 currently holding it all together is just taking the piss    I've also ordered 60 more retaining wall blocks for the front yard, I mis-gonculated the height that was required to get above the base of the Photinia's (red robin's) that are the hedge behind the front fence, currently it is 2 blocks high, and about 1/2 a block short, so going 3 blocks high will be above the base of the red robin's, and allow some room for mulch
    • It is the stock air box with the panel filter. Everything else is stock except the exhaust at this point, as I also went back to the cleaned 270cc injectors. I will check the RPM when the IACV is unplugged and report back.
×
×
  • Create New...