R32 Gtr Earthing Pin 60 On Pfc

[Taran]

Hi Guys,

Has anyone earthed Pin 60 from the PFC in order to fix the dreaded R32 GTR Misfire issue?

I just want to know, when you earthed it, did you cut the wire entirely and earth it straight from the PFC? Or did you splice in an earth?

I tried splicing in an earth and the car started to idle very roughly and i'm a bit cautious to cut the wire entirely to test a direct earth.

Thanks,

Taran.

[GTR_NUTZ]

Want to know as well.

I tried a home made earthing kit still no luck.

[Taran]

I also tried the earthing kit. It made everything else a bit more stable but the misfire still happens.

[GTR_NUTZ]

I was told by other skyline people that running other than OEM coil packs can cause the hiccup. But I don't think so... And another thing I've been told was that the power fc needs a constant voltage and if it drops below that then it causes the hiccup.

But I can't confirm or deny any of that sh!t.

[Taran]

I'm running OEM coil packs. Yeah i'm thinking it's a voltage thing. Hoping that grounding pin60 completely will fix it. Maybe it links up to a weak ground in the loom. Will try this weekend and post back.

[GTR_NUTZ]

Was thinking lastnight if it's a voltage thing then just by cutting the power wire and putting a capacitor in there would fix that. The power fc then gets correct voltage 100% of the time.

[Taran]

Alright guys. I grounded pin 60 directly using a very clean ground and it failed. It made the idle really lumpy and rough so now i'm back to how it was before.

Anyone have any other ideas?

The capacitor sounds interesting. How would we implement it?

[Taran]

Update. So i drove the car yesterday and the misfire is gone. Will have to drive it a bit longer to confirm it but so far so good. If it's permanently gone then it means it was the ignition fuse, near where the 4wd fuse is under the bonnet. The new fuse i picked up from SSS Auto looks like a newer type, it sticks out a bit more and the fuse link looks much fresher than the previous one. Perhaps this could have been it? What kind of fuses do you guys have in yours and what model GTR's do you have?

[mico]

what made u lean toward that ??

[Taran]

Ok guys, still no misfire after driving today. Will test over the next few weeks.

"what made u lean toward that ?? " Process of elimination. Not conclusive yet though.

[gotRICE?]

The fuse thing could be the fix. Maybe after X years they get brittle.

I put a USB charger in my ciggy lighter, and when u plugged a USB cable into it the fuse blew. Thinking it was a broken item to start with, but tested it again with a brand new fuse, and its been fine ever since. So it is possible that maybe the fuses are causing a bit of resistance?

[mico]

ok i have a green 30a. its exactly the same as the awd fuse. what is the brand or part number of the fuse mate ?? thanx and good find.

[Taran]

ok i have a green 30a. its exactly the same as the awd fuse. what is the brand or part number of the fuse mate ?? thanx and good find.

Hey man, it was the brown pacific 25a fuse that's in the same cluster as the 4wd fuse, etc...

[mico]

k thanx well mine is a 30 and its green. i have a 1992 gtr.

[Taran]

k thanx well mine is a 30 and its green. i have a 1992 gtr.

Do you have the misfire too?

[mico]

i think so but its not at all bad. ill be cruising along everything perfect then BANG the car will just kinda like hit limiter or something scares the absolute shit outta me. then thats all, it goes without a trace. does it once every 2nd drive say. just got new 30a fuses the old ones have alot of green scum on the copper through the clear plastic.

[Don Dada]

Highly doubt its the fuse guys. I get it with my rb26 pfc too and its not even in a gtr

Edited July 30, 2012 by Don Dada

[Taran]

Highly doubt its the fuse guys. I get it with my rb26 pfc too and its not even in a gtr

What type of car, loom, coils, etc... do you have?

[Taran]

Still no misfire guys. how's everyone else's going?

[mico]

mine done it once since the new fuses. how bad was your misfire tho mate ?? same as i described above or worse ??