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R33 S2 Misfiring


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hey guys

Just wondering if anyone can give me advice on this problem i have.

I have a r33 s2 gtst with 3.5 exhaust, fmic, hks stainless steel pod, stock boost, 60 000km on the clock

The car ran beautifully and 2 days ago i installed a box for the pod filter.

Car still ran fine after this install

Then this afternoon i gave the car a few good runs and it started to make popping noise from the exhaust.

This happens under hard acceleration and only in the rev ranges of 4000 to 5500.

I have read many posts on this problem but i still have a few questions.

1. has anyone else had this problem runing stock boost?

2. do you think that because the filter is getting cooler air now that its causing the problem?

any advice would be greatly appreciated.

Cheers Simon

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shouldnt be because of making the airbox, all that would do is increase efficentcy a.k.a cooler air better combustion.....

u may be getting a little boost spike due to the cold air but it shouldnt be much on stock boost, hence u can rule out boost cut....

make sure u havent damaged the afm or the plug/lead around the area

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thanks dude

i`ll check the plug and afm as well, great care was taken when removing it but will double check

one thing i did notice about the afm was that the resistor wire looked like it had a bit of gunk on it,

do you thing i should hit it with the carby cleaner?

Cheers Simon

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i have the same problem aswell!! its been driving me crazy the past few weeks,

i have put new sprak plugs in n it done nothing, i even put a tank of v-power in a bottle of octane boost in to try n see if it was cause of low octane but still does it..

im just about to go out n buy a set of coils cause i cant think of anything else to change or check

any1 have any other help?? im sure other ppl have this same problem aswell

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i can see that theres a few of us on the same boat.

Hey Buddy, did you regap your spark plugs at 0.8mm before putting them in?

and what type sparkies did you use?

R33 S2, let us know if the new coils cures it.

I was also looking at a set of splitfire coil packs from hi octane racing for 600, is this price reasonable?

Cheers Simon

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i can see that theres a few of us on the same boat.

Hey Buddy, did you regap your spark plugs at 0.8mm before putting them in?

and what type sparkies did you use?

R33 S2, let us know if the new coils cures it.

I was also looking at a set of splitfire coil packs from hi octane racing for 600, is this price reasonable?

Cheers Simon

sliding performance on these forums sell them delivered for 515!

http://www.skylinesaustralia.com/forums/in...howtopic=153971

ill let ya know how i go!

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hey guys

pulled out my plugs today.

the car had a set of hks plugs through it and the tips of the electrode are still pointy and shinny.

had a quick look at the coils and they look pretty good on first inspection.

will have a proper look at the coils tomorrow in the day light.

Also going to put a set of new plugs gapped at 0.8 or 0.9 tomorrow.

So i`ll get the plugs in and re install everthing tomorrow night and hopefully it should run sweat.

If not then a set of new coils are on the table.

Cheers Simon.

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hey guys

Just wondering if anyone can give me advice on this problem i have.

I have a r33 s2 gtst with 3.5 exhaust, fmic, hks stainless steel pod, stock boost, 60 000km on the clock

The car ran beautifully and 2 days ago i installed a box for the pod filter.

Car still ran fine after this install

Then this afternoon i gave the car a few good runs and it started to make popping noise from the exhaust.

This happens under hard acceleration and only in the rev ranges of 4000 to 5500.

I have read many posts on this problem but i still have a few questions.

1. has anyone else had this problem runing stock boost?

2. do you think that because the filter is getting cooler air now that its causing the problem?

any advice would be greatly appreciated.

Cheers Simon

yeah, i had the exact same problem on my r33 with similar mods. i replaced all of my spark plugs and now it runs like a dream.

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Hey guys

put a new set of sparkies in on tuesday and the car still miss fired.

then bought a set of coils from crd for 515 and problem fixed.

cheers to all that pitched in to give advice and help.

Simon

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