PLEASE help with problem (Slugish/stalling/no power)

[druzilla32]

Hey all,

I recently changed my plugs to NGK Iridium's. I took it for a drive after they were put in and it went fine right thru the rev range.

About 20mins later i took off in 1st, change to second and nothing happened. I would have my foot down but there would be no power.

I take my foot off the gas for a few seconds then i can feel the power come back on and it is all fine again.

Sometimes when i am at idle the revs will rise to 1600rpm and stay there.

When i change into the next gear (usually into 2nd), is when it happens most of the time.. I can drive it on the highway and keep it at 100kmph (aprox 2900rpm)

It Seems like a boost leak, or something to to with the fuel. It was fine before i change the plugs.

All help is appreciated

[Muz]

Check your fuel filter as it may be full of crap. The changing of plugs may well be incidental.

Cheers

Muz

[druzilla32]

new insight to my problem

when the car is playing up it wont hit boost.

I revved it to 5000rpm and the boost guage rose in vacume and came to a stop right on "0".

I can feel the car is about to stall so i put my foot on the gas and nothing happens... AT ALL! it just stalls.

If the car is cold it drives fine.

If the engine is warm but the car has been sitting for a while it is fine.

If the car and engine is warm it drives like a dog!

So when something on my car warms up.. it f@#ks up?

[R31Heaven]

My monies on your CAS, they tend to die when they get hot if they are faulty. Check all your piping first.

[druzilla32]

it was the plugs people.

NGK Iridium's

I put my old ones back in and it is all good now.. Just miss fires a bit, which is why i bought the Iridium's in the first place.

They came out with a build up of white crap on them? Does that mean im running to rich or lean?

And why would my car act like this with these plugs?

[druzilla32]

yer iand i think the fact that i couldnt hit boost sometimes was a safty thing.. It could sence something was wrong so wouldnt let me rev over 2000rpm or hit boost?? Would this be true?

[R31Heaven]

white - grey it what they should be at itis hard to tell if its lean from that. If they are black ate least you know its rich. What gap are you running on the plugs?

[druzilla32]

my old ones were a 1.1gap

The iridiums were .9gap

(BKR6EIX)

[R31Heaven]

Try plugs at 0.8 and see how they go

[druzilla32]

Try plugs at 0.8 and see how they go

can skylines be tuned to run better with better plugs?

I wasted that $120 so i think i will get them when i get my big service.

do you think that they overheated? Cuz they were fine for the first 5min of driving... Do you think that it wouldnt hit boost because the car could sence they were overheated, so it was like a safety thing.?

[WazR32GTSt]

a set of ngk coppers costs $20 and works just as good.

all it means is that you have to change them evey 10,000kms but you know that each time a fresh set is going in and the car will purr again...

[R31Heaven]

I agree wholy with WazR32GTsT A set of coppers are just as good the only reason I can see to use Iridiums is the life span, as it is a bitch to take RB spark plugs out and also puts stress on the coil pack connecters as they end up brittle and can break. They wont give you a performance gain. Coming into summer it wont hurt to put 1 heat range colder plugs in.

[rustya]

Check your firing amplifier and your coil. Your car sound like losing electricity.

[druzilla32]

it was the plugs people.

NGK Iridium's

I put my old ones back in and it is all good now.. Just miss fires a bit, which is why i bought the Iridium's in the first place.

They came out with a build up of white crap on them? Does that mean im running to rich or lean?

And why would my car act like this with these plugs?