Spark?

[Abo Bob]

Here's a weird one.

My r34 had a miss at several points between 4 and 5 grand under load. car has 68000 kms on it so i replaced the plugs with new iridium ones which seemed to fix it.

went on a trip to melbourne and... went fine down there but while there it did the same (no maybe similar). replaced the fuel filter to be sure but no change.

what it does now is fart around at high revs (over 5k). it spits and farts (i'm good with tech stuff) at high revs/loads and shits me right off. it got gradually worse so that now when overtaking I never use second (whereas before I would use it it to kick me from 90 to 120 when behind a gobbler) i only use 3rd. even in that gear i don't like revving it too much much cos above 4500 it gets that old miss again.

I am starting to think it's possibly heat related cos it's mainly happened on hot days after a fair amount of driving and earlier today i went for a drive and it didn't happen at all.

it sucks cos i feel like i have an engine that can only handle 4000 rpm..

I'm thinking coils but surely these suckers should last longer than 70k ???

any thoughts? (other than get your shit together you blubbering fool...) :hellpisd:

[VIPERGTSR01]

have you gapped them to .8mm?.. it may help

also maybe reset your ECU and then see what happens

[blind_elk]

So, it's an auto?

What mods?

[Mr GTS4]

my R32 did that and found out that the 6th plug tip was almost burnt off due to lean mixtures. i installed a air/fuel ratio gauge in my car after that happened. when the car hits 5 grand the power dies off completly. it still accelerates but it has no power behind it.. i installed a 500hp fuel pump and changed the fuel filter and that still didn't do the trick... now i'm thinking it could be the fuel pressure regulator. anyone got any thoughts on it?

getting back to your prob. have a look at number 6 plug and see what the go is.

[NIZR34GTT]

Here's a weird one.

My r34 had a miss at several points between 4 and 5 grand under load.  car has 68000 kms on it so i replaced the plugs with new iridium ones which seemed to fix it.

went on a trip to melbourne and... went fine down there but while there it did the same (no maybe similar).  replaced the fuel filter to be sure but no change.

what it does now is fart around at high revs (over 5k). it spits and farts (i'm good with tech stuff) at high revs/loads and shits me right off.  it got gradually worse so that now when overtaking I never use second (whereas before I would use it it to kick me from 90 to 120 when behind a gobbler) i only use 3rd. even in that gear i don't like revving it too much much cos above 4500 it gets that old miss again.  

I am starting to think it's possibly heat related cos it's mainly happened on hot days after a fair amount of driving and earlier today i went for a drive and it didn't happen at all.

it sucks cos i feel like i have an engine that can only handle 4000 rpm..

I'm thinking coils but surely these suckers should last longer than 70k ???

any thoughts? (other than get your shit together you blubbering fool...)    :hellpisd:

Had the same problem with mine ,took the plugs out regaped them to 0.8 .

I suspected the coil packs as well so I wrapped insulating tape around the stem of each pack, so if they were arcing across to the cylinder head it would stop them.

Anyway whatever the problem was plugs or coils it has fixed the problem.

I also took my Turbosmart BOV of the car and put the standard one back.The car would never run right with the Turbosmart BOV on,runs like a dream now.

[NIZR34GTT]

Abo Bob the other thing I did was remove the plastic cover that goes over the coil packs as it retains to much heat which probably isn't to good for the coil packs.I cut the bit of at the back where the brackets go and just fitted that small section.

[Abo Bob]

Yeah it's an auto. Plugs were gapped to 8 mm when I put them in brand new 2 weeks ago.

Might try the coil thing over the weekend.

[Guest RedLineGTR]

Yeah it's an auto.  Plugs were gapped to 8 mm when I put them in brand new 2 weeks ago.

Might try the coil thing over the weekend.

Is it running stock boost???

[Abo Bob]

boost is stock, whole car is stock at the moment. (I've just ordered a nice flowing Fujitsubo exhaust, can't wait)

[NIZR34GTT]

boost is stock, whole car is stock at the moment.  (I've just ordered a nice flowing Fujitsubo exhaust, can't wait)

Wind the boost up and you will experience a different car. 1 bar is just right. :headspin: