missing problem... advice please??

[WHITE R32]

my tuner seems to think that my spark is been blown out with excessive boost.... above 16 psi it missfires etc but at the 16 psi it has about 300rwhp or so... im just wondering if it could be something in the tuning of the microtech.... i have irridum plugs gapped to .6 mm..... im just thinking the coil packs may not be putting out enuf spark/strong enuf spark... what sorta power at the wheels are the std coils and igniter setup good for on a r32 rb20det??? cheers guys...

[BryanB]

yeah when i had a boost leak my car would cut out above 16 psi, its just the limit that they will go before something cuts out in my case i think the ECU cuts it out. not too sure on this as i don't like boosting my car that high anyway as it will blow my turbo

[sLo-32]

I have a feeling i know which tuner your talking about too. Cause they told me the same thing. I used to have the same problem, the tuner changed the plugs to a v-Spark plug or something along those lines, but the plugs didnt last all that long. I have just changed my plugs to irridiums and its started again, and im only running 10psi

Mine only seems to do it after abit of a drive on the freeway tho. If i punch it while on the street its sweet but drive bout a half hour on the freeway, then decide to give it a squirt it'll constantly misfire. I'm actually in the process of sorting this problem out with the mech that put the new plugs in. When he finds a solution i'll let ya know

[Steve]

Hmm, doesnt sound right. I have seen stock ecu, stock ignighters with irridium plugs (I 'think' they were gapped at 0.8) running 18lbs with no probs to 8200 redline.

I have run up to 1.5 bar on R33 with stock ignighters on iridium gapped at 0.8 no probs.

Have you taken care of fuel?

16psi isnt really huge boost. It may be worth dropping Clint32 a pm, I am 99% sure he runs more than 16psi on his R32.

[BryanB]

slo 32 check your igniotion leads and coil packs....