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DIY: Spark Plugs Change (HUGE Pics)

Old 07-14-2008, 12:05 PM
  #21  
mestisoZ
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hey guys i just installed my new spark plugs i used ngk PLFR5A - 11 plugs. and i didnt move the plenum or intake duct. i just got to the coil packs from the side. anyways when i start the car now i get a rough idle. almost like the cars camming? the plugs are pre gapped? but ima be checking them again to make sure. anyone have any advice on this problem thanks?
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Old 07-15-2008, 11:57 AM
  #22  
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i made a mistake when installing the plugs on the intake side i didnt plug the harness together right with the right coil pack.
On the intake side the last two harnesses for the coil pack i had switched.
Make sure that the middle harness goes to the coil pack in the rear and the last last extention goes to the middle
It sounds weird but it is so, that the wires dont get bunched up.....(Nissan made it look clean)
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Old 07-16-2008, 10:24 AM
  #23  
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Originally Posted by McLovin350Z
i made a mistake when installing the plugs on the intake side i didnt plug the harness together right with the right coil pack.
On the intake side the last two harnesses for the coil pack i had switched.
Make sure that the middle harness goes to the coil pack in the rear and the last last extention goes to the middle
It sounds weird but it is so, that the wires dont get bunched up.....(Nissan made it look clean)
haha yep thats what it was i figured it out yesterday. doh.. hehe thanks anyways man
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Old 07-25-2008, 08:32 AM
  #24  
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Now what kind of plugs are good. I've heard alot about NGK Iridium. I went to autozone and they had 2 kinds, the NGK iridium or autolite double platinum. How are the autolite plugs? does anyone know?
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Old 07-25-2008, 12:52 PM
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Just get copper: NKG LFR5A-11. They don't last as long, but they do conduct a better spark. And they're less expensive.
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Old 07-25-2008, 01:09 PM
  #26  
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NGK.

Depending on your set up, a colder spark plug may be better. Again depending on your set up, a hotter or the regular (recommended) may be better.

If you're N/A and will drive in all normal conditions, the recommended spark plug is your best bet. NGK seems to be the popular brand and their prices are good. Copper ones do conduct a better spark, but iridium and platinums are also good and will last you a lot longer than copper ones.
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Old 09-13-2008, 12:58 PM
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Originally Posted by 3hree5ive0ero
NGK.

Depending on your set up, a colder spark plug may be better. Again depending on your set up, a hotter or the regular (recommended) may be better.

If you're N/A and will drive in all normal conditions, the recommended spark plug is your best bet. NGK seems to be the popular brand and their prices are good. Copper ones do conduct a better spark, but iridium and platinums are also good and will last you a lot longer than copper ones.
i thought jeremy tibbs said copper was better for the juice
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Old 09-13-2008, 01:12 PM
  #28  
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Originally Posted by 2004Black350z
i thought jeremy tibbs said copper was better for the juice
Yeah, that's what he told me as well.
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Old 09-13-2008, 03:03 PM
  #29  
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Copper is better. I was just saying that Iridiums will last longer. I have copper plugs in mine.
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Old 09-13-2008, 03:07 PM
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Originally Posted by 3hree5ive0ero
Copper is better. I was just saying that Iridiums will last longer. I have copper plugs in mine.
Ah, I only read the last post lol. I agree.
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Old 09-13-2008, 08:13 PM
  #31  
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Come on, guys. My Z's bottle-fed. Do you really think I wouldn't know that little fact? You give me too little credit.
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Old 09-14-2008, 01:17 PM
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ok i have a question, generally on spark plugs

just yesterday, i was in my car and i turned the key and the car didnt turn on. you can hear it turning, but it never ignited. Is the spark plug the only possible reason for this? Or might something else be the cause of this? If the spark plug is the only possible reason, then im gonna change mine. Thanks alot
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Old 10-24-2008, 05:16 PM
  #33  
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anybody tried using the pulstar plasma plugs on their z yet?
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Old 02-03-2009, 09:29 AM
  #34  
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The dealer said the stock plugs were good for 100k miles.

So does the coil assembly have to be replaced at certain intervals?

Last edited by chromesilverz; 02-03-2009 at 02:38 PM.
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Old 04-11-2009, 06:57 PM
  #35  
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Originally Posted by chromesilverz View Post
The dealer said the stock plugs were good for 100k miles.

So does the coil assembly have to be replaced at certain intervals?
The coils get replaced when they die. Theres no schedule for them.
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Old 05-28-2009, 12:30 PM
  #36  
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I wanted to know if anyone has used the e3 sparkplugs? or opinion on them, brother told me to get them because he saw on horsepower tv that it helps car. I have my car with bolts on and I just want ngk iridiums.
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Old 05-28-2009, 12:51 PM
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Originally Posted by johndoesdamage View Post
I wanted to know if anyone has used the e3 sparkplugs? or opinion on them, brother told me to get them because he saw on horsepower tv that it helps car. I have my car with bolts on and I just want ngk iridiums.
ngk iridium is a much better plug, ive never had a problem with them..buddy of mine just put the e3 plugs in his turbo pt cruiser and burned one up within a few months, melted it i guess from what i heard
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Old 06-08-2009, 12:44 PM
  #38  
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anyone every figure out the idle thing? the idle is def different now, feels like a misfire but i have no cel yet, so idk. help?
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Old 06-08-2009, 01:03 PM
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Originally Posted by iamshadow View Post
anyone every figure out the idle thing? the idle is def different now, feels like a misfire but i have no cel yet, so idk. help?

no idea what idle thing u are talking about here..but sounds like u did your own plugs and didnt clip all the clips back together right or mixed them up or just didnt do it correctly, pull and do again correct
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Old 06-08-2009, 11:12 PM
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changed plugs many a times. did one at a time, no mix ups there. everything is clipped tightly.

and im refering to a rough-ish idle. well not really rough, but it feels like a misfire as stated earlier
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