Coil Pack Issue

[Dirty4Door]

Just need some wisdom on an issue that has been bugging me. I had a tune done by Boostworx in Adelaide back in early Jan 2013. Wen I drove it from Wagga to Adl it ran back on 5 cyl due to a coil pack failing. As a result the plugs fouled out due to incorrect gapping done by a mechanic in Wagga. They still profess to say the gap is meant to be 1.1 according to there books but I know its meant to be .75, .8.

Replaced a coil pack with a standard one upon arrival in Adl and then when the hot weather came in I dropped another coil but only once the car got warmer. Drove back to Wagga and 10 hours later another coil seems to have spat it.

Dilemma I have is I was informed by a few mechanic that the standard genuine coil packs provide a better spark and make the car run better. Do i creplace all coil packs with standards or move on? Is the issue more then coil packs even though I have replaced plugs again with correct gapping done by boostworx.

Any help would greatly be appreciated.

Cheers

[Duncan]

Hi mate, 1.1 is the correct gap for skyline plugs, so don't blame the local guy. Where that gets tricky is that you may need to lower the gap to get a consistent spark with older coil packs, higher boost etc etc.

You should always run the largest gap you can (without missfire) to get the most efficient burn due to the largest spark.

As for coil packs....in my experience, any new set will provide a better spark than a 20yo set. While some people have had Dead on Arrival (DOA) issues with cheaper coilpacks, if they work they will work as well as factory. And pretty much any supplier will replace a DOA coil pack (not to mention they have to under fair trading laws)

[Sinista32]

in these Forums the most common advice on Gap and coils is Splitfire and 0.8.

taking note most of the skylines are modified as Duncan pointed out

Stock - I'm sure Nissan has it right on the money.

Plugs and coil pack replacement is easy so save money and do it yourself.

I would not replace a single coil pack unless it was one of a full new set.

If your having one old one fail then another take the leap and do all six new at once.

[luke gtr]

rathy, as stated, that is what it would say in any spark plug suppliers book.

they would also have platinum tipped spark plugs as the replacement.

tuners will generally swap the spark plugs back to a standard plug for greater surfave area on the tips.

gap them down(ive run 0.7mm in the past) and tune accordingly.

there is also a debate on the best coil packs.

any new set will generally creat a better spark than your 20yr old set.

alot seem to think brand new nissan to be one of the best.

you pay with blood for these, so alot dont care for them.

there could also be other reasons for dropping a cylinder.

get it checked by your mechanic.

good luck, and keep us updated.

[Dirty4Door]

Red hot! Thanks for the reply fellas. I have gone with a colder rating plug and had them set to .75 and ordered a new set of coil packs. Easier to replace them all then one by one.

Didn't mean to blame the mechanic but the plugs only lasted one long trip but did get money back for them, Will see how it travels over the next coming weeks when these new packs arrive.

Cheers once again!