Project fade to black- 1987 HR31 Skyline

31GUN · **Posted:** Sat Apr 28, 2012 9:48 pm

Found a previously unknown stash of coilpacks in the boxes-O-shit that came with the car.
So I thought I would take a pic of my collection.
I still have a full set of everything in the car too.

In other news, I am completely out of ideas re miss.
As soon as it hits full boost it drops a cylinder.
All plugs new (and re-gapped), all coilpacks cleaned and changed 1 at a time,
coil driver changed 3 times (in isolation), CAS changed, injector cleaner and fresh tank of BP Ultimate.
Problem still there.
Have I got a dud injector that gives up under a bit of pressure?
Once again car close to "For Sale" sign.

nzjdm · **Posted:** Mon Apr 30, 2012 2:03 am

is it intermittent? or every time it hits boost? i mean the easiest way to test is find some one with the same car and swap parts slowly.. ie afm, lignitor, tps, the list goes on haha

31GUN · **Posted:** Mon Apr 30, 2012 2:39 am

Did exactly that.
Still got problem.

Eric · **Posted:** Mon Apr 30, 2012 2:41 am

check if all your mass/ground/earth wires are all connected or make an extra one. i had the same problem on my skyline and i had a cracked mass wire, after searching and swapping parts for days i ended up replacing that wire and everything was fine again

31GUN · **Posted:** Mon Apr 30, 2012 2:48 pm

Now that is some useful information!
Thanks for that Eric.
I had just about run out of ideas

Eric · **Posted:** Mon Apr 30, 2012 11:13 pm

well i hope it works as good for you as it did for me! for me it was in the piece of loom that goes inbetween the coilpacks, so it took me quite a while to find it..

31GUN · **Posted:** Fri May 04, 2012 5:54 pm

Okay, plugs changed to BPR6ESs, new fuel filter, checked all earths (3) all good, gave all the injector plugs a wiggle, checked injector loom plug.
Still have the problem. Miss on boost.
Next port of call, I will get my spare set of injectors reco'd and do a swap.

31GUN · **Posted:** Mon May 07, 2012 2:39 pm

I give up.
Car booked in for fix and tune on Friday.
See what we can get with a serious tune in it.

31GUN · **Posted:** Thu May 10, 2012 7:09 pm

Dropped the car off at SAS this morning to fix the miss and get a tune.
The first thing they wanted to do was fit $550.00 worth of Eboost.
Before they even looked at the car. I was still filling out the paperwork.
I can pretty much guess what the problem is going to be.
I think I might forgo the tune.
People say they are good but they are not filling me with confidence.
I get the feeling you get better service the more you spend.

The last time I was there I asked about a tune and was quoted $1200 for a chip and tune.
I said I already had the chip done by SAS and would just need the tune.
Answer? $1200 chip and tune.
Me-I already paid $350 for you to do the chip right?
So the tune part should be $1200 - $350 = $850 right?
Them- "$1200 chip and tune."

So getting your chip done must be free if you are getting it tuned at the same time.

kev · **Posted:** Thu May 10, 2012 7:18 pm

Dunno what a new boost controller is going to bring to the table...did you tell them you don't want it?

31GUN · **Posted:** Thu May 10, 2012 10:56 pm

Convo went like this.

I asked if they knew how to use a Turbotech boost controller.
He said "it's just a boost bleed right?
I said no and explained how they work. (ball/ spring etc)
He pulled a face and said he would only use an Eboost.
I said how much?
He said $550/$560 something.
I said no, too expensive.
He gave me the "you'll be sorry" face and said "well that's up to you but I wouldn't use anything else."

Right from there I thought hmmmm/sinking feeling.

kev · **Posted:** Thu May 10, 2012 11:05 pm

Oh dear.

So...what is the situation now?

kev · **Posted:** Thu May 10, 2012 11:06 pm

BTW did you end up testing the resistance of each coilpack?

31GUN · **Posted:** Fri May 11, 2012 1:24 am

No.
Have multimeter, only know how to check for circuit/short.

kev · **Posted:** Fri May 11, 2012 1:34 am

Check resistance of each coilpack, see if they are all the same

kev · **Posted:** Fri May 11, 2012 3:46 am

This might cheer you up for the time being

http://youtu.be/Jy7ULXSLV_Y

31GUN · **Posted:** Fri May 11, 2012 1:21 pm

Holy Crap!

datsun200l · **Joined:** Sun Apr 24, 2011 10:41 am **Posts:** 42

hi,
sorry to hear about that engine problem, I really think you should consider fixing it rather than giving up.
have you checked for vaccum leaks on the manifold or around the turbine base?
you should check the piston chamber compression to make sure that your not losing pressure.
lastly is the problem cylinder the same each time the boost kicks in or is it random (any piston) ......

31GUN · **Posted:** Sat May 12, 2012 12:26 pm

I am picking the car up 1st thing Monday.
I'm just not comfortable with those guys.
Hopefully they haven't touched it yet.

I think I may have fixed it in my head too.
Had a light bulb moment at about 4am this morning.
You may be on the right track with the leak thing Mr Datsun200l.

If that fails I have found a really good shop and tuner to take it to.

tj75gc · **Posted:** Sun May 13, 2012 2:55 am

kev wrote:

This might cheer you up for the time being

http://youtu.be/Jy7ULXSLV_Y

Holy unnecessary powerslides Batman!

Project fade to black- 1987 HR31 Skyline

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