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DIY: Spark Plugs Change (HUGE Pics)

Old 09-22-2010, 05:46 PM
  #61  
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I believe it's the middle cylinder on the driver's side.


5v6
3v4
1v2
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Old 12-31-2010, 06:34 PM
  #62  
STorres390
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hey, i just changed my spark plugs today and used the Denso Iridium spark plugs...everything went well and didnt take that long at all but when i started my car up it sounded much much throatier, (like a mini muslce car haha)...found out that a hose wasnt connected. So after fixing that started it back up and my engine light came on and it sounded like it wanted to die on me at idle and while i drove it around a little. Anybody have any advice at all?? Oh and now my driver side catylitic converter gets super hot and glows a bright orange...
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Old 12-31-2010, 06:46 PM
  #63  
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Originally Posted by STorres390 View Post
hey, i just changed my spark plugs today and used the Denso Iridium spark plugs...everything went well and didnt take that long at all but when i started my car up it sounded much much throatier, (like a mini muslce car haha)...found out that a hose wasnt connected. So after fixing that started it back up and my engine light came on and it sounded like it wanted to die on me at idle and while i drove it around a little. Anybody have any advice at all?? Oh and now my driver side catylitic converter gets super hot and glows a bright orange...
when u did ur install of the new plugs u didnt connect something right or swapped the wires wrong and drove the car around while it was mis-firing (throaty sound lulz) and melted the cat shut....now u need a new cat and u need to fix ur mistake on the plug install

good luck ...
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Old 12-31-2010, 08:01 PM
  #64  
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Originally Posted by tylerxfire View Post
when u did ur install of the new plugs u didnt connect something right or swapped the wires wrong and drove the car around while it was mis-firing (throaty sound lulz) and melted the cat shut....now u need a new cat and u need to fix ur mistake on the plug install

good luck ...
this morning and no its not mis-firing the engine would be making a complete different noise, the plugs are working fine and i pulled out of my drive way got to the end of my court and turned around and pulled back into my drive way cause i was worried something worse might happen..i made sure all the wires were connected to the right places...but i do think i need a new cat now cause its never done that before until now
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Old 01-10-2011, 11:43 AM
  #65  
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Pulled the last plug on the driver side and there are some oil build up....
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Old 01-10-2011, 02:42 PM
  #66  
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Originally Posted by BlueDragonZ View Post
Pulled the last plug on the driver side and there are some oil build up....
get used to it..very common..no worries..wipe it up and throw a new plug in..
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Old 02-09-2011, 05:38 PM
  #67  
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Has anyone else had trouble with the socket hitting a lip in the cylinder? I have an HR if that matters. I have tried both 5/8 & 16mm
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Old 03-30-2011, 10:02 AM
  #68  
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Cool thread. So did I miss what the gap needs to be? I just picked up a set of NGK plugs.
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Old 03-30-2011, 10:17 AM
  #69  
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buy the correct plugs for the z and dont touch them..i never messed with my gap and far as i know an iridium plug is not supposed to be re-gapped..
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Old 03-30-2011, 11:20 AM
  #70  
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I did this back in January and determined at that time that I need to replace the valve cover due to oil in spark plugs. About to install the new covers with the new O Rings. Do I need to replace the plugs again? I'm sure oil have gotten in the new plugs.
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Old 04-04-2011, 10:31 PM
  #71  
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So, got my plugs in tonight. Car fired right up. Looks and sounds good, however the check engine light is on. Going to test drive it tomorrow. If the light is still on tomorrow, going to pull the batt for a half hour and see if it resets.
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Old 04-05-2011, 09:37 AM
  #72  
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^ Above problems solved. A successful replugging. The SES gave me a 0102 MAF error code in diagnostic mode. MAF: Mass Air Flow sensor. Most likely occured when I test fired the car before putting everything back together. Reset the SES, all is well. Now, time to put my cover back on.
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Old 04-08-2011, 09:27 PM
  #73  
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Originally Posted by Beaker02 View Post
Cool thread. So did I miss what the gap needs to be? I just picked up a set of NGK plugs.
Don't need to gap the laser plugs pre-gapped
6240 stock number right?
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Old 04-11-2011, 05:19 PM
  #74  
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Yep. Coorect. Thanks.
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Old 04-28-2011, 12:15 PM
  #75  
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I have a 2005 350z automatic with intake and exhaust what kind of sparkplugs would you recomend?
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Old 04-30-2011, 11:10 PM
  #76  
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Stock range would be fine
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Old 07-18-2011, 08:31 AM
  #77  
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Easily the best description on this I have seen. Have to swap mine out soon but I'm still not looking forward to it. I'm tempted to pay someone to do it just to keep Murphy from ****ing with me again.
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Old 07-18-2011, 08:57 AM
  #78  
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^ dont be scared i just changed mine on friday, this one is super easy.

just take your time and you'll be fine. oh and make sure u have enough extender for your wrench, its a long way down there
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Old 07-18-2011, 09:38 AM
  #79  
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Originally Posted by Nismomonkey View Post
Easily the best description on this I have seen. Have to swap mine out soon but I'm still not looking forward to it. I'm tempted to pay someone to do it just to keep Murphy from ****ing with me again.
You said yourself that this is easily the best description (thanks, btw). It's really a no-brainer job if you can just follow the directions in my 1st post. Just make sure you have the correct tools and take your time.
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Old 07-18-2011, 03:56 PM
  #80  
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I'm going to go pick up the plugs later this week and take a shot at it.
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