R32 missing under load

[JH32]

I know there's a lot of these threads out there, but most of them pertain to R33 so I couldn't really find anything to help me.

I put my car on the dyno a few weeks back, and the car was missing quite heavily. So I changed the plugs to NGK 6ES items (I think ... something like that anyway). They were gapped to 0.8mm so I left them like that and put them in the car.

Put the car back on the dyno and it still seems to be doing it. At night time I can notice it the most, but only when I'm gunning it. It sounds like big popping noises coming out of the exhaust.

Could it in fact be fuel? As I had the SAFC tuned only 2 weeks ago.

[Mase]

yeah mine was doing that till i put those plugs in. Popping sound etc, i had iridiums in previously. How much boost are you running? Maybe you could look at gapping them a tad smaller like 0.76 or something along those lines.

[JH32]

Yeah I might try doing that

I'm only running 12psi

Cheers

[ix9]

James,

Mine's still doing it, altho not as much as before the AFC tune, it's still annoying...

btw I used NGK BCP6RES plugs on mine, gapped to 0.8

[JH32]

Hey Kym,

I think they're the same plugs that I have. I'm going to try gapping them down to 0.7mm from 0.8mm now, as I read a post that rev210 put up a while ago and he gapped his to that

Cheers buddy

[Mase]

i saw some people gapped them at 0.76, is 0.7 too small at all??

[WazR32GTSt]

similar problem over here.

my old plugs were gapped to 1.1mm and i just installed BCPR6ES which are 0.8mm and no better.

i'm thinking injectors blocked or maybe stuffed coil. have you had it checked out by a mechanic?

[babia]

my r33 was missing under load untill recently, turned out to be dirty coil packs. cleaned them with rp7 and good as new, no more missing.

[JH32]

Waz nah I haven't had it checked out, but I might try giving the coil packs a clean like babia suggested.

Cheers guys

[RSR33]

Had the same problem, had the car at the mechanics for a week while he stood there and scratched his head, ended up fixing the problem though, One dodgy coil pack to blame! All running sweet now.

[JH32]

Did it idle ok though? And general running alright?

Mine only misfires when boosting hard

[WazR32GTSt]

babia,

what do you mean by cleaning with rp-7?

jsut take the coils off and spray inside??

cheers,

Waz.

[Mase]

when i cleaned mine i removed the coil packs and the coil pack wiring loom, i bought some contact cleaner and sprayed it on the plug connectors and where it plugs into the coilpacks, then i sprayed where the spark plugs contact to the coil in the rubber grommet thing. Left it to dry for about 20 mins, then wiped down with a clean cloth for any excess and reassembled.