Car Farts And Pops After 10psi Boost

[turbs33]

To be honest guys, the problem started happening to me after a fmic install.. without winding in any more boost.. So maybe it is rich and retard.

Before the fmic i had shity plug with what looked to be a gap of 1.5 mm they looked like worn iridiums or platmins. But funtioned fine until the fmic. Now i run .8mm 6 heat range coppers......

If i turn down the boost a fraction the problem goes away.

I might explore other avenues before going split fires.

Thanks for all the input.

[superspit]

mmmmmmmm.......up until 3 days ago my car was generating 110 rear wheel Kw with under 7psi (indicated)..

It would 'boost cut', pop and complain at anything above 8 psi!!!.....I've been driving that way for months!!

I changed plugs, coil packs (2nd hand), AFM, reset puter,....no difference, according to Dyno.

Today my car generated 170 rwKw @ 11psi!!......Dyno

Because i didn't take the time to find a stupid f**king little leak on the IC rubber 'out pipe elbow'.....open >2 or 3 mm across, was enough to make my car useless on the freeway or for overtaking!!!

Point.....pull apart you IC piping and scrutinise it!!!!...it's cheaper!!!......and sounds so much like the issue here, in my experience.

Although, it would be nice to have the splitfires!!!

Regards,

Superspit.

[r33madd]

My Splitfire coils arrived today from NENGUN took them 4 days to get here and only cost me NZ$550 so im pretty happy. i will be installing today so will let you all know if it fixes the prob fingers crossed

[superspit]

My Splitfire coils arrived today from NENGUN took them 4 days to get here and only cost me NZ$550 so im pretty happy. i will be installing today so will let you all know if it fixes the prob fingers crossed

honestly....good luck man....nice coils.

But, if you do actually find that this doesn't solve the issue, please do inspect ALL of you IC piping...

Let us know how you go!

Superspit.

[r33madd]

honestly....good luck man....nice coils.

But, if you do actually find that this doesn't solve the issue, please do inspect ALL of you IC piping...

Let us know how you go!

Superspit.

I checked all poping on the weekend and replaced every hose clamp with new ones and checked every silicon hose for cracks.

also put new cable ties on every boost and vacuum line.

i also tries all the below as well with no luck

New Plugs at .8mm

New Fuel filter

Cleaned AFM

Cleand Coils (the spring inside) with AFM cleaner

checked for hair line cracks (found nothing)

Taped Coils (waste of time)

Spraid with heat rated silicone (waste of time)

Re-set ECU

so yea i have tried all other cheap options so yea i hope these do fix the prob.

My cars in the shop getting the rest of my body kit fitted so i cant fit the coils for another few hours haha im amping at the bit to put them in.

Edited May 9, 2007 by r33madd

[jake33]

good luck. i have an identical issue being that mine pops after 10psi, never use to do it before the FMIC. let us know after the spitties.

cheers

jake

[MBS206]

Anything above around 8PSi on my 33 creates the bogging/rich and retard feeling at different points in the rev range (holding the throttle off a little bit it feels like it goes much harder, and doesn't bog)

I think I have a minor leak somewhere, mainly near the manifold.

Car comes off the road soon for some work, and this will be one of the things I adress. (Along with new ECU)

[superspit]

Anything above around 8PSi on my 33 creates the bogging/rich and retard feeling at different points in the rev range (holding the throttle off a little bit it feels like it goes much harder, and doesn't bog)

I think I have a minor leak somewhere, mainly near the manifold.

Car comes off the road soon for some work, and this will be one of the things I adress. (Along with new ECU)

oh man!....that is exactly what my car was doing....up until last week!......it was only making 110kw!!!

Now making 185 at 11.5 psi.....thank god we found that shitty little leak!!....it only opened when I really pushed it....first gear seemed fine....3,4,5th gears were pussy!!

Geeees....those splitfires do look pretty!......might get me some of them!.

[MBS206]

I'm already running splitfires

And 1st gear "normally" seems fine for me, except one day I punched it and it must have hit a boost cut/fuel cut and I nearly smacked my head on the steering wheel except for the seat belt lock, then it came back to life took off up the road, then 2nd gear played it's usual tantrum

Might have a good search of the IC piping soon.

Could you hear your leak?

[superspit]

I'm already running splitfires

And 1st gear "normally" seems fine for me, except one day I punched it and it must have hit a boost cut/fuel cut and I nearly smacked my head on the steering wheel except for the seat belt lock, then it came back to life took off up the road, then 2nd gear played it's usual tantrum

Might have a good search of the IC piping soon.

Could you hear your leak?

Hi MBS...

nupp....over the natural induction noise it was impossible.

The guy at the dyno even said it took some time to find it!!! It was on the output side of the stock intercooler. (elbow connector pipe).

We both new that it was going to be something silly like that....I did plugs, AFM, checked timing, compression, ECU status...etc...nothing helped.

Until the elbow was replaced...then ........bammmmm! Skyline was back!

Take nothing for granted when looking for pressure loss/leaks, 'cause if you do chances are you'll overlook the problem and spend stupid amounts of cash, as I did!!!!

Superspit.

[r33madd]

Well good new for me the Splitfires fixed my prob no more pops and splutters the car feels better than ever Rev's from 0-7000 on 12-14 psi boost with out a prob im very happy with the result. wish i had done it sooner

Edited May 9, 2007 by r33madd

[superspit]

Well good new for me the Splitfires fixed my prob no more pops and splutters the car feels better than ever Rev's from 0-7000 on 12-14 psi boost with out a prob im very happy with the result. wish i had done it sooner

WELL DONE r33MAD!!

They do look great, so in this case your money was well spent!.

Now don't blow your turbo up!!!!!

Onya!.

Superspit.

[superspit]

WELL DONE r33MAD!!

They do look great, so in this case your money was well spent!.

Now don't blow your turbo up!!!!!

Onya!.

Superspit.

PS...where is that GREY connector on your TPS going to.......I've never actually seen TPS with a connection to the normally bare grey plug...brown yes.

mmm...maybe it's just the Sklines I've seen?......?

Superspit.

[InterCooL]

Well good new for me the Splitfires fixed my prob no more pops and splutters the car feels better than ever Rev's from 0-7000 on 12-14 psi boost with out a prob im very happy with the result. wish i had done it sooner

told you!

[VBAll]

Just to let other people know,

I had a similar problem that did turn out to be a minor boost leak, so check your cooler piping if your having a similar problem!

[r33madd]

Just to let other people know,

I had a similar problem that did turn out to be a minor boost leak, so check your cooler piping if your having a similar problem!

I agree check all other possible probs before splashing out on new coils.

I had checked evey option then my last resort was the coils.